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Weak gravitational lensing by multi horizons black hole EPL (IF 1.8) Pub Date : 2024-02-07 Farzan Mushtaq, Xia Tiecheng, Muhammad Yasir, Aitazaz Ahsan
Abstract We investigate the weak gravitational lensing caused by multi horizon black hole (MHBH) on light. Using the Gauss-Bonnet theorem, which demonstrates that light bending is a topological and global phenomenon, we are able to deduce the deflection angle of light in the weak field limits. First, we use the Gauss-Bonnet theorem to estimate the Gaussian optical curvature and determine the MHBH deflection
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Reflective mode conversions between extensional and flexural waves by ultrathin oblique anisotropic tri-component resonators EPL (IF 1.8) Pub Date : 2024-02-06 Fengyi Chen, Qiujiao Du, Fengming Liu, Pai Peng
Abstract In this letter, we report a theoretical study for the conversions between extensional and flexural modes for Lame waves. The incident extensional waves can be completely converted into reflected flexural waves, or vice versa. The used structure is oblique anisotropic tri-component resonators with locally dipolar resonators. Without special optimization designs, the thickness of conversion
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Thermal transport in Yb-based 1-2-20 materials EPL (IF 1.8) Pub Date : 2024-02-06 Chinedu E. Ekuma
Abstract Lattice thermal transport properties of heavy fermion YbT$_2$Zn$_{20}$-based (T = Co, Rh, and Ir) 1-2-20 compounds are calculated with single-mode relaxation-time approximation and full solution of linearized phonon Boltzmann transport equation from first-principles anharmonic phonon calculations. We predict low lattice thermal conductivity $\kappa_L$ with a maximum value of $\sim24.16\,$mW/m-K
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Chemical oscillation in ultracold chemistry EPL (IF 1.8) Pub Date : 2024-02-02 Subhrajit Modak, Priyam Das, Challenger Mishra, Prasanta K. Panigrahi
Abstract We demonstrate the occurrence of oscillatory reactions in the ultra-cold chemistry of atom-molecular Bose-Einstein condensate. Nonlinear oscillations in the mean-field dynamics occur for a specific range of elliptic modulus, giving rise to both in- and out-phase modulations in the atom-molecule population density. The reaction front velocity is found to be controlled by photoassociation, which
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Restoring core-periphery structure of networks EPL (IF 1.8) Pub Date : 2024-01-31 Bo Yang, Anqi Li, Nuohan Li, Zhiyong Pei, Youcheng Zuo
Abstract Core-periphery structure is commonly observed in diverse real-world networks, where nodes are categorized as core or peripheral nodes by connection patterns. It plays an important role in ensuring potential functionality and intrinsic order in networks. Networks are inevitably suffering from the malicious attacks and random errors, which could lead to the collapse of core-periphery structure
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Ultracold atoms carrying orbital angular momentum: engineering topological phases in lattices EPL (IF 1.8) Pub Date : 2024-01-30 E. Nicolau, G. Pelegrı́, Juan Polo, A. M. Marques, Andrew J. Daley, J. Mompart, Ricardo Assis Guimaraes-Dias, Veronica Ahufinger
Abstract Ultracold atoms carrying Orbital Angular Momentum (OAM) loaded in lattices constitute a promising platform for engineering topological systems either at the single particle limit or in the presence of interactions. In this review, we report recent progress on this topic with the focus on bosons with OAM l = 1 in lattices of coplanar ring potentials, which provide an ideal scenario to realise
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Dynamic modeling of neuromodulation techniques: Towards elaboration and individual specificity EPL (IF 1.8) Pub Date : 2024-01-29 Ying Yu, Fang Han, Qingyun Wang
Abstract Neurological disorders place a significant burden on patients, their families, and society, posing immense scientific challenges in terms of treatment and mechanistic research. Neuromodulation involves the application of invasive or non-invasive technologies to externally manipulate the nervous system of the brain, aiming to provide excitatory or inhibitory modulation that can improve abnormal
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Red or blue tensor spectrum from GW170817-compatible Einstein-Gauss-Bonnet theory: A detailed analysis EPL (IF 1.8) Pub Date : 2024-01-29 Vasilis K. Oikonomou, Pyotr Tsyba, Olga Razina
Abstract In this work we shall prove that the tensor spectral index of the primordial tensor perturbations for GW170817-compatible Einstein-Gauss-Bonnet theories, takes the approximate simplified form $n_{\mathcal{T}}\simeq 2\left(-1+\frac{1}{\lambda(\phi)} \right)\epsilon_1$ at leading order, with $\lambda (\phi)$ being a function of the scalar field which depends on the scalar field potential and
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Enhancing relay synchronization in multiplex networks by repulsive relay layer EPL (IF 1.8) Pub Date : 2024-01-29 Zhouchao Wei, Gokulakrishnan Sriram, Karthikeyan Rajagopal, Sajad Jafari
Abstract Relay synchronization, which is the interlayer synchronization of two indirectly connected layers, is an important phenomenon in multiplex networks. In this study, relay synchronization is investigated through a triplex network of Hindmarsh-Rose neurons while considering attractive and repulsive intralayer couplings. Relay synchronization is improved when the remote layers have attractive
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Variable brane tension and dark energy EPL (IF 1.8) Pub Date : 2024-01-26 Naman Kumar
Abstract In this letter, we show that in a particular braneworld scenario with variable brane tension, we obtain matter acting as dark energy (in the sense that it has an effective Equation of State equivalent to that of dark energy) while a scalar field on the brane plays the role of matter. This result is interpreted from the Friedmann equation obtained from our model that exactly matches the standard
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The formation of large aggregates by Brownian growth and the onset of a runaway process EPL (IF 1.8) Pub Date : 2024-01-26 Ben Schubert, Jürgen Blum, Matthias Isensee, Noah S. Molinski, Adrian Pöppelwerth, Ingo von Borstel, Rainer Schräpler, Daniyar Balapanov, Andrei Vedernikov
Abstract In an experiment onboard a microgravity sounding rocket, we observed the growth of agglomerates consisting of μm-sized silica spheres under well-defined conditions. After an initial short charge-induced growth phase, the charge-neutralized agglomerates grew due to Brownian-motion induced collisions, first in an orderly fashion and thereafter, due to the temporal increase in particle concentration
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Fermionic quantum gas at finite temperature within a Lorentz violating background EPL (IF 1.8) Pub Date : 2024-01-25 Rafael L. Junqueira Costa, Rodrigo F. Sobreiro
Abstract In this work we consider a fermionic quantum gas within a Lorentz-Violating background at finite temperature. We derive the effective action within Path Integral formalism considering the interaction of external electromagnetic field and Lorentz violating background fields with quantum fermions. To introduce the temperature effects, we employ the Matsubara formalism. Comments about the corresponding
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Non-equilibrium phase transitions in active rank diffusions EPL (IF 1.8) Pub Date : 2024-01-24 Leo Touzo, Pierre Le Doussal
Abstract We consider N run-and-tumble particles in one dimension interacting via a linear 1D Coulomb potential, an active version of the rank diffusion problem. It was solved previously for N=2 leading to a stationary bound state in the attractive case. Here the evolution of the density fields is obtained in the large N limit in terms of two coupled Burger’s type equations. In the attractive case the
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Localization of light in three dimensions: A mobility edge in the imaginary axis in non-Hermitian Hamiltonians EPL (IF 1.8) Pub Date : 2024-01-24 Giuseppe Luca Celardo, Mattia Angeli, Francesco Mattiotti, Robin Kaiser
Abstract Searching for Anderson localization of light in three dimensions has challenged experimental and theoretical research for the last decades. Here the problem is analyzed through large scale numerical simulations, using a radiative Hamiltonian i.e. a non-Hermitian long-range hopping Hamiltonian, well suited to model light-matter interaction in cold atomic clouds. Light interaction in atomic
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Orbital selectivity in Sn adatom adlayer on a Si(111) surface EPL (IF 1.8) Pub Date : 2024-01-23 Luis Craco, Sabrina S. Carara
Abstract Unconventional quantum many-particle phenomena naturally emerges when approaching the Mott-Hubbard insulating state. Finding insulator-metal transition in correlated adatoms in semiconductor surfaces provide an ideal material platform to design electronic states which may host superconductivity in two-dimensional electron systems. To uncover the micro-scopics underlying by multi-orbital interactions
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Multi-soliton solutions and soliton molecules of the (2+1)-dimensional Boiti-Leon-Manna-Pempinelli equation for the incompressible fluid EPL (IF 1.8) Pub Date : 2024-01-23 Kang-Jia Wang, Feng Shi
Abstract The (2+1)-dimensional Boiti-Leon-Manna-Pempinelli equation (BLMPE) is explored in this letter. The multi-soliton solutions (MSSs) are probed via the Hirota bilinear form that is extracted by taking advantage of the Cole-Hopf transform. The soliton molecules (SMs) on the different planes such as the (x,y)-,(x,t)- and (y,t)- planes are investigated via assigning the velocity resonance mechanisms
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Electronic correlation and s-wave pairing effects in hole-doped LiNbO2: A DFT+DMFT study EPL (IF 1.8) Pub Date : 2024-01-23 Luis Craco
Abstract We compute the electronic many-particle properties of the normal and s-wave super-conducting state of hole-doped Lithium Niobite (LiNbO2), taking into account local dynamical correlations by means of density functional plus dynamical mean-field theory (DFT+DMFT).
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Elasticity, plasticity and screening in amorphous solids: A short review EPL (IF 1.8) Pub Date : 2024-01-19 Avanish Kumar, Itamar Procaccia
Abstract The aim of this short review is to summarize the developing theory aimed at describing the effect of plastic events in amorphous solids on its emergent mechanics. Experiments and simulations present anomalous mechanical response of amorphous solids where quadrupolar plastic events collectively induce distributed dipoles that are analogous to dislocations in crystalline solids. The novel theory
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Negative temperature pressure in black holes EPL (IF 1.8) Pub Date : 2024-01-19 Richard A. Norte
Abstract The concept of negative temperature (T < 0) is unique to quantum physics and describes systems that are hotter than any positive temperature system. For decades negative temperatures have been shown in a number of spin systems, but experiments only recently demonstrated atomic ensembles with negative temperatures in their motional degrees of freedom. An observed behavior of such negative temperature
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Another formulation of the fractional nonlinear Schrödinger equation EPL (IF 1.8) Pub Date : 2024-01-16 Paul André Paglan, Jean Pierre Nguenang
Abstract In this letter, we pave the way to establish the formulation of a non-trivial fractional Nonlinear Schrödinger (NLS) equation, which is different from the formulations known so far that consisted in directly replacing the integer orders of the derivatives by non-integer ones. Thereafter, we set up some formulations, adapted to some particular physical cases, namely, the cases where the nonlinearity
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Behavior of a chain of coupled self-propelled particles with two-dimensional potential and noise EPL (IF 1.8) Pub Date : 2024-01-16 Bing Wang, Zhiguo Cheng
Abstract Behavior of an elastic chain of coupled self-propelled particles in a two-dimensional potential with Gaussian colored noise is investigated. The channel and colored noise regulates the directed transport of the system. The chain of particles changes the moving direction with increasing modulation constant of potential. The average velocity of the chain appears periodic fluctuation with increasing
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Portfolio diversification with varying investor abilities EPL (IF 1.8) Pub Date : 2024-01-16 Nick James, Max Menzies
Abstract We introduce new mathematical methods to study the optimal portfolio size of investment portfolios over time, considering investors with varying skill levels. First, we explore the benefit of portfolio diversification on an annual basis for poor, average and strong investors defined by the 10th, 50th and 90th percentiles of risk-adjusted returns, respectively. Second, we conduct a thorough
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Mediated semi-quantum key distribution protocol mixing single-state and entangled-state EPL (IF 1.8) Pub Date : 2024-01-12 Zhenye Du, Youlong Yang, Tong Ning
Abstract Mediated semi-quantum key distribution (MSQKD) is a popular topic in quantum cryptography, which requires less quantum abilities from legitimate users, Alice and Bob, and has the advantage of high noise tolerance. In this paper, we propose a new MSQKD protocol where the third-party quantum server M can randomly send single-state and entangled-state without informing Alice and Bob the type
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Function phononic crystals EPL (IF 1.8) Pub Date : 2024-01-12 David Röhlig, Eduard Kuhn, Fabian Teichert, Angela Thränhardt, Thomas Blaudeck
Abstract We propose a novel type of phononic crystal for which the materials parameters are continuous functions of space coordinates without discontinuities corresponding to a seamless fusion of the constituent materials within the crystal lattice. With help of an adaptation of this fundamental approach, we extend the well-established concept of phononic crystals, allowing an investigation of the
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Non-equilibrium attractor for non-linear stochastic dynamics EPL (IF 1.8) Pub Date : 2024-01-11 Antonio Patrón, Bernardo Sánchez-Rey, Emmanuel Trizac, Antonio Prados
Abstract We study the dynamical behaviour of mesoscopic systems in contact with a thermal bath, described either via a non-linear Langevin equation at the trajectory level---or the corresponding Fokker-Planck equation for the probability distribution function at the ensemble level. Our focus is put on one-dimensional---or $d$-dimensional isotropic---systems in confining potentials, with detailed b
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A rheological model for spheroids including extra-cellular matrix EPL (IF 1.8) Pub Date : 2024-01-11 Claude Verdier, Liviu I. Palade
Abstract The rheology of spheroids has been studied intensively recently and it was shown that the presence of the extra-cellular matrix (ECM) can have significant effects on the overall behaviour of these biological systems. Collagen I can indeed be a proxy between cells and bring new intriguing effects, as its content increases. To investigate these effects further, a two-phase emulsion model is
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B → K* MX vs B → KMX as a probe of a scalar-mediator dark matter scenario EPL (IF 1.8) Pub Date : 2024-01-10 Alexander Berezhnoy, Dmitri Melikhov
Abstract Recently, Belle II reported the observation of the decay $B\to K M_X$, $M_X$ the missing mass, with the branching ratio much exceeding ${\cal B}(B\to K \nu\bar\nu)$ which is the only Standard Model (SM) process contributing to this reaction. If confirmed, this might be an indication of new nonSM particles produced in this decay. One of the possible explanations of the observed effect could
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Stay in your lane: Density fluctuations in multi-lane traffic EPL (IF 1.8) Pub Date : 2024-01-08 Jeremy Worsfold, Tim Rogers
Abstract When a new vehicle joins a lane, those behind may have to temporarily slow to accommodate them. Changing lane can be forced due to lane drops or junctions, but may also take place spontaneously at discretion of drivers, and recent studies have found that traffic jams and traffic oscillations can form even without such bottlenecks. Understanding how lane changing behaviour affects traffic flow
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Force model in the penetration by impact into confined granular media EPL (IF 1.8) Pub Date : 2024-01-05 A. Seguin
Abstract We study analytically the influence of lateral confinement on the penetration depth of a sphere into a granular medium by impact. The granular medium is contained in a cylindrical tank of diameter D and a sphere of diameter d plunges along its axis. The presence of side walls, parametrized by the distance between the walls and the sphere, influences the penetration depth. Here, we deploy a
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An analogy between effective potential representing prime numbers and Schwarzschild black hole EPL (IF 1.8) Pub Date : 2024-01-02 Charli Chinmayee Pal, Subodha Mishra, Prasanta Kumar Mahapatra
Abstract The effective two body interaction is derived using the single particle Schrodinger equation for the prime numbers with probability density based on the prime counting function (which is the number of primes below a certain x). Though the speculative connection of primes to Schwarzschild spacetime or black hole has been there for a long-time, here for the first time our derived potential serendipitously
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Quantum control by effective counterdiabatic driving EPL (IF 1.8) Pub Date : 2024-01-02 Francesco Petiziol, Florian Mintert, Sandro Wimberger
Abstract We review a scheme for the systematic design of quantum control protocols based on shortcuts to adiabaticity in few-level quantum systems. The adiabatic dynamics is accelerated by introducing high-frequency modulations in the control Hamiltonian, which mimic a time-dependent counterdiabatic correction. We present a number of applications for the high-fidelity realization of quantum state transfers
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Symmetry transformations and novel solutions for the graphene thermophoretic motion equation with variable heat transmission using Lie group analysis EPL (IF 1.8) Pub Date : 2024-01-02 Mahmoud Gaballah, Rehab M. El-Shiekh
Abstract The single-layer graphene flakes is the amazing thing in recent industry, it has many uses in biosensors, photonics and water filtration because of it is outstanding electronic, thermal, and mechanical properties. In this letter, we have studied the graphene variable heat transmission thermophoretic motion (vcGT) equation using symmetry group method. As a result, a Lie group of four vector
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The influence of environment-based reputation on cooperation in spatial prisoner's dilemma game EPL (IF 1.8) Pub Date : 2024-01-02 S. Huang, Y. Hu, X. Liu, X. Fu
Abstract Research has shown that reputation mechanism can be effective in facilitating the generation and maintenance of cooperation in social dilemmas. In the traditional reputation mechanism, the amount of change in reputation is fixed. However, in real life, people's impression scores of a player are often influenced by the environment in which he lives. In other words, we prefer to celebrate the
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Non-standard Wigner doublets EPL (IF 1.8) Pub Date : 2023-12-21 F. A. da Silva Barbosa, J. M. Hoff da Silva
Abstract Guided by a conservative formulation in investigating the physical content of quantum fields, we explore non-standard Wigner classes of particles that could provide the basis for self-interaction models to dark matter. We critically contrast the analysis with long-standing constraints to non-standard Wigner classes in the literature to discuss the model's viability.
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Rogue wave patterns of the Fokas-Lenells equation EPL (IF 1.8) Pub Date : 2023-12-20 Xue-Wei Yan, Yong Chen
Abstract In this work, we study the high-order rogue wave solution for the Fokas-Lenells equation using the Kadomtsev-Petviashvili (KP) reduction method. These rogue wave patterns consist of triangle, pentagon, heptagon, nonagon, which are analytically described by the root structures of the Yablonskii-Vorob'ev polynomial hierarchy. On the other hand, we also report the other types of rogue wave patterns
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Extracting Bayesian networks from multiple copies of a quantum system EPL (IF 1.8) Pub Date : 2023-12-20 Kaonan Micadei, Gabriel T. Landi, Eric Lutz
Abstract Despite their theoretical importance, dynamic Bayesian networks associated with quantum processes are currently not accessible experimentally. We here describe a general scheme to determine the multi-time path probability of a Bayesian network based on local measurements on independent copies of a composite quantum system combined with postselection. We further show that this protocol corresponds
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Discharge mode conversion of bending flexible electrode EPL (IF 1.8) Pub Date : 2023-12-20 Desheng Zhou, Jiayin Li, Xin Tang, Minkwan Kim
Abstract Printed flexible electrode has attracted widespread attention due to the low-cost process, large-area printing and resource-saving. The performances of flexible electrode on different applications is studied by researchers. In this paper, the characteristics of flexible electrode with different bending angles are experimental studied. Electrical, optical and productions characteristics are
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Some examples of quasiperiodic tilings obtained with a simple grid method EPL (IF 1.8) Pub Date : 2023-12-19 Jean-François Sadoc, Marianne Impéror-Clerc
Abstract A grid method using tiling by fundamental domain of simple bi-dimensional lattices is presented. It refers to a previous work done by Stampfli in 1986 using two grids by regular hexagons, one rotated by relatively to the other. This leads to a quasiperiodic structure with a twelvefold symmetry made of regular triangles, squares and rhombuses. The tessellation of the plane by the overlap domains
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Acoustic metascreen for broadband wavefront manipulation with stationary phase gradients EPL (IF 1.8) Pub Date : 2023-12-14 Chen Liu, Nengyin Wang, Zhongming Gu, Yong Li, Jie Zhu
Abstract The development of an efficient acoustic metascreen utilizing artificial micro-structured metamaterials holds paramount importance for the manipulation of acoustic wavefronts. However, the expansive broadband capability of such metascreens is often compromised due to the variations in amplitude and phase profiles of the conceived structures at different frequencies. To address this issue,
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Extraplanetary system under modified gravity EPL (IF 1.8) Pub Date : 2023-12-13 Omaymah A. Alhejress
Abstract We investigated the properties of exoplanets using a modified gravity law. We then devised a gravitational formula that linked the radius, mass, semimajor axis, and stellar mass of the exoplanet. This formula is then validated by taking into account four different astronomical organizations (WASP, HAT, TOI, and HATS). These findings are compared to those in the exoplanet.edu database. The
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Classifying deviation from standard quantum behavior using the Kullback-Leibler divergence EPL (IF 1.8) Pub Date : 2023-12-11 Salman Sajad Wani, Saif Al-Kuwari, Xiaoping Shi, Yiting Chen, Abrar Ahmed Naqash, Seemin Rubab, Mir Faizal, S. Kannan
Abstract In this letter, we propose a novel statistical method to measure which system is better suited to probe small deviations from the usual quantum behavior. Such deviations are motivated by a number of theoretical and phenomenological motivations, and various systems have been proposed to test them. We propose that measuring deviations from quantum mechanics for a system would be easier if it
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Rayleigh-Jeans prethermalization and wave condensation in a nonlinear disordered Floquet system EPL (IF 1.8) Pub Date : 2023-12-11 Prosenjit Haldar, Sen Mu, Bertrand Georgeot, Jiangbin Gong, Christian Miniatura, Gabriel Lemarié
Abstract Periodically driven quantum systems make it possible to reach stationary states with new emerging properties. However, this process is notoriously difficult in the presence of interactions because continuous energy exchanges generally boil the system to an infinite temperature featureless state. Here, we describe how to reach nontrivial states in a periodically kicked nonlinear disordered
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Correspondence between the Hamiltonian cycle problem and the quantum lattice gauge theory EPL (IF 1.8) Pub Date : 2023-12-06 Xiaopeng Cui, Yu Shi
Abstract We propose the correspondence between the Hamiltonian cycle (HC) problem in graph theory and the quantum lattice gauge theory (QZ2LGT) defined on the lattice dual to that graph. For the QZ2LGT, when the coupling parameter g is less than the critical value g c , the ground state is a superposition of all configurations with closed strings of same spins, which can be obtained by using an adiabatic
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Theory on coherent perfect absorber and laser via a metamaterial slab with complex parameters EPL (IF 1.8) Pub Date : 2023-12-05 Zhouzhou Sun, Weixin Lu, Ping Bai
Abstract We explicitly derive the general conditions of a metamaterial slab to achieve coherent perfect absorber (CPA) and laser under the excitation of two counter-propagating incident waves. Our results provide a unified theory that could be applied in designing homogenous metamaterial with complex parameters for realizing CPAs and lasers. Especially, the theory discusses two special cases, i.e.
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Bound states of Dirac fermions in the presence of a Fermi velocity modulation EPL (IF 1.8) Pub Date : 2023-12-05 Ullah Kalim, Jun-Tong Ren, Sha-Sha Ke, Yuan Feng, Hai-Feng Lü
Abstract We investigate the effect of a position-dependent Fermi velocity on the electronic properties of two-dimensional Dirac materials. A physical Fermi velocity distribution, which approaches a finite value at infinity and experiences a modulation near x = 0, is considered. Such a position-dependent Fermi velocity could be realized in the curved graphene or by applying strain. It is shown that
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FLPR model: Nilpotent (anti-)co-BRST symmetries EPL (IF 1.8) Pub Date : 2023-12-05 R. P. Malik
Abstract We demonstrate the existence of a set of novel off-shell nilpotent and absolutely anticommuting continuous symmetry transformations, within the framework of the Becchi-Rouet-Stora-Tyutin (BRST) formalism, which are over and above the usual off-shell nilpotent and absolutely anticommuting (anti-)BRST transformations that are respected by the quantum version of the classical first-order Lagrangian
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Investigating a method for macroscale energy extraction from random electrons movement EPL (IF 1.8) Pub Date : 2023-12-05 M. Peivandi, R. Kouhikamali
Abstract This paper aims to investigate a novel method for regularizing the random movements of electrons, in order to generate net movement and extract energy from the resulting electromotive force. The proposed method involves designing anisotropic conditions, focusing on exploring the effects of surface roughness on a metal wire in a two-dimensional space with the presence of a magnetic field. This
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Detection of Hofmeister effects at a single-molecule level EPL (IF 1.8) Pub Date : 2023-12-04 Guangzhou Qu, Ting Liang, Yuyu Feng, Jiaen Li, Zhouhui Deng, Hu Chen, Yanhui Liu
Abstract Metal cations are essential for the function of nucleic acids. Given their efficiency for DNA overwinding and the DNA hairpin folding/unfolding process coupled with DNA twist, we systematically investigated the effects of cation identities and increasing concentrations of NaCl, KCl, and LiCl from 50 mM to 300 mM on the folding/unfolding process by manipulating a DNA hairpin construct with
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Comment on “Harmonic oscillator problem in the background of a topologically charged Ellis-Bronnikov–type wormhole” by Ahmed Faizuddin EPL (IF 1.8) Pub Date : 2023-12-04 Francisco M. Fernández
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Biosensor based on multiple metal layer-hole array EPL (IF 1.8) Pub Date : 2023-12-02 Jindan Duan, Gang Song, Gaoyan Duan, Peilin Lang
Abstract We propose a biosensor which is sensitive to the refraction index (RI) of the tested liquid. The sensor is composed of a metal-insulator-metal structure based on periodic nanopore arrays, whose absorption spectrum exhibits a narrow peak at the resonant wavelength. The finite difference time domain method is used to simulate the proposed structure. The results show that there is a narrow resonant
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Variance properties of the microwave absorption spectrum of an ensemble of nitrogen vacancy centers in diamond EPL (IF 1.8) Pub Date : 2023-11-30 R. A. Chelly, T. Chang, I. Holzman, T. Cohen, J. Kantorovitsch, M. Stern
Abstract This work presents an original method based on the variance properties of the microwave absorption spectrum of an ensemble of nitrogen vacancy centers in diamond. The spectrum is measured optically. A compact and simple device is designed to optimize the photon collection. We conduct a quantitative comparison of the ensemble's optical signal in both the visible and near infrared range. Using
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Cooperation dynamics in multiple correlated games: A review EPL (IF 1.8) Pub Date : 2023-11-29 Ji Quan, Xiao Jian Ma, Shengjin Cui, Xianjia Wang
Abstract Individuals often engage in complex, non-isolated interactive environments. The interdependence manifested by strategic interaction environments across multiple dimensions or attributes has advanced the recognition of correlated games. The behavioral choices in one strategic scenario can be influenced by strategic attempts in another. How the correlation between different strategic environments
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Raman effect and unusual transport properties of Co-doped Mn2FeAl Heusler alloy EPL (IF 1.8) Pub Date : 2023-11-29 Srishti Dixit, Swayangsiddha Ghosh, Neha Patel, Mohd Alam, Krishanu Bandyopadhyay, Nisha Shahi, Yogendra Kumar, M. Sawada, K. Shimada, Satyen Saha, Sanjay Singh, Sandip Chatterjee
Abstract Semiconducting materials with a distinctive blend of high electrical and low thermal conductivity are required for efficient thermoelectric devices. In this aspect, Heusler alloys are potential candidates for thermoelectric materials. It has been observed that Co doping in Mn2FeAl enhances the electrical conductivity as well as reduces the thermal conductivity of the system leading to an improvement
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Multifractality and statistical localization in highly heterogeneous random networks EPL (IF 1.8) Pub Date : 2023-11-27 Diego Tapias, Peter Sollich
Abstract We consider highly heterogeneous random networks with symmetric interactions in the limit of high connectivity. A key feature of this system is that the spectral density of the corresponding ensemble exhibits a divergence within the bulk. We study the structure of the eigenvectors associated with this divergence and find that they are multifractal with the statistics of eigenvector elements
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Quasinormal ringing of regular Einstein-Yang-Mills black hole EPL (IF 1.8) Pub Date : 2023-11-23 Yang Pu, Yi Yang
Abstract In this letter, we study quasinormal modes of regular non-minimal Einstein-Yang-Mills (EYM) black holes. We mainly consider the scalar field perturbation and axial gravitational perturbation of the EYM black hole. The corresponding effective potential is derived by solving the field equations. The quasinormal ringing of EYM black hole under scalar field perturbation and axial gravitational
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Coupled propagation dynamics on complex networks: A brief review EPL (IF 1.8) Pub Date : 2023-11-23 Zhishuang Wang, Haoxian Li, Jiaxing Chen, Zhiyong Hong, Qian Yin, Chengyi Xia
Abstract Coupled propagation dynamics based on complex networks have received widespread attention in recent years. This work reviews the research work related to coupling propagation dynamics on single-layer complex networks, multi-layer complex networks and high-order complex networks. We sort out relevant research results from three aspects: competitive propagation, cooperative propagation and asymmetric
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Spreading and absorption of a drop on a swelling surface EPL (IF 1.8) Pub Date : 2023-11-22 Pierre Van de Velde, Nathalie Fabre-Parras, Christophe Josserand, Camille Duprat, Suzie Protière
Abstract When a drop is placed on a surface it fully wets, it usually spreads until the height of the drop is comparable to the size of a single fluid molecule. However, when some fluid is absorbed by the substrate, the drop will first spread to a given radius before receding and eventually disappearing completely. In this study, we consider the spreading and absorption of a silicone oil drop on a
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Fluctuation relations at large scales in three-dimensional hydrodynamic turbulence EPL (IF 1.8) Pub Date : 2023-11-22 Alexandros Alexakis, Sergio Chibbaro, Guillaume Michel
Abstract It has long been conjectured that, in three-dimensional turbulence, velocity modes at scales larger than the forcing scale follow equilibrium dynamics. Recent numerical and experimental evidence shows that such modes share the same mean energy and therefore support this claim, but equilibrium dynamics does not reduce to equipartition of energy. In this work, a large set of direct numerical
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An observer's perspective of the Unruh and Hawking effects—Using coherent signals to extract information from a black hole EPL (IF 1.8) Pub Date : 2023-11-21 Satish Ramakrishna
Abstract The Unruh effect is one of the first calculations that explain what one would see when transiting between an inertial reference frame in its quantum field vacuum state and a non-inertial (specifically, uniformly accelerating) reference frame. The inertial reference frame's vacuum state would not correspond to the vacuum state of the non-inertial frame. The observer in the non-inertial frame
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Constraint relations for superfluid weight and pairings in a chiral flat band superconductor EPL (IF 1.8) Pub Date : 2023-11-17 M. Thumin, G. Bouzerar
Abstract Within ten years, flat band (FB) superconductivity has gained a huge interest for its remarkable features and connection to quantum geometry. We investigate the superconductivity in a FB system whose orbitals are inequivalent and in which the gap and the quantum metric are tunable. The key feature of the present theoretical study is to show a unique and simple constraint relation that pairings