- 作 者: ( "quanlin jie" OR "quan-lin jie" )
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An optimized cluster density matrix embedding theoryChinese Physics B (IF 1.652) Pub Date : 2021-09-03 ,DOI:10.1088/1674-1056/ac0cdcHao Geng, Quan-lin JieWe propose an optimized cluster density matrix embedding theory (CDMET). It reduces the computational cost of CDMET with simpler bath states. And the result is as accurate as the original one. As a demonstration, we study the distant correlations of the Heisenberg J 1–J 2 model on the square lattice. We find that the intermediate phase (0.43 ≲ J 2 ≲ 0.62) is divided into two parts. One part is a near-critical ...
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Detection of Quantum Phase Transition by Excited StateJournal of the Physical Society of Japan (IF 1.933) Pub Date : 2021-08-05 ,DOI:10.7566/jpsj.90.094705Jie Qiao, Quanlin JieWe detect the quantum phase transition of the ground state from the excited state by using the cluster density matrix embedding theory to calculate the excited state of the J1 − J2 model. By analyzing the excitation energy gap of the transformation in the system, we detect that the critical point of the intermediate phase of ground state is J2 \( \simeq \) 0.5. With the increase of energy, the new ...
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Density matrix embedding theory of excited states for spin systemsComputer Physics Communications (IF 4.717) Pub Date : 2021-04-01 ,DOI:10.1016/j.cpc.2020.107712Jie Qiao, Quanlin JieAbstract We use cluster density matrix embedding theory (CDMET) to calculate the excited states for quantum spin systems. The bath states are a set of block-product states and optimized by the variational method. By considering the symmetry in the form of penalty function, the degeneracy of excited eigenstates can be reduced. We prove the accuracy of our method by obtaining different excited states ...
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Higgsino asymmetry and direct-detection constraints of light dark matter in the NMSSM with non-universal Higgs masses Supported by the National Natural Science Foundation of China (11605123)Chinese Physics C (IF 2.944) Pub Date : 2021-03-12 ,DOI:10.1088/1674-1137/abe03cKun Wang, Jingya Zhu, Quanlin Jie
In this study, we analyze the direct-detection constraints of light dark matter in the next-to minimal supersymmetric standard model (NMSSM) with non-universal Higgs masses (NUHM); we specially focus on the correlation between higgsino asymmetry and spin-dependent (SD) cross section. We draw the following conclusions. (i) The SD cross section is proportional to the square of higgsino asymmetry in dark
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Quantum to classical transition induced by a classically small influence*Chinese Physics B (IF 1.652) Pub Date : 2020-07-01 ,DOI:10.1088/1674-1056/ab8a3aWen-Lei Zhao,Quanlin JieWe investigate the quantum to classical transition induced by two-particle interaction via a system of periodically kicked particles. The classical dynamics of particle 1 is almost unaffected in condition that its mass is much larger than that of particle 2. Interestingly, such classically weak influence leads to the quantum to classical transition of the dynamical behavior of particle 1. Namely, the ...
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Distant Spin Correlations in Quantum Spin Liquid on the Honeycomb LatticePhysica Status Solidi (B) - Basic Solid State Physics (IF 1.782) Pub Date : 2020-02-10 ,DOI:10.1002/pssb.201900659Hao Geng, Zhuo Fan, Quan-lin JieEmbedding spins in a line shape (line embedding) with cluster density matrix embedding theory (CDMET) is used to study distant spin correlations and entanglement entropy in the quantum spin liquid (QSL) of the spin‐1/2 J 1–J 2–J 3 Heisenberg model on the honeycomb lattice. It is found that, in the QSL, the reduced density matrix of two distantly separated spins is close to the direct product of the ...
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Initial state radiation correction and its effect on data-taking scheme for σB(e+e−→ ZH) measurementInternational Journal of Modern Physics A (IF 1.475) Pub Date : 2019-07-29 ,DOI:10.1142/s0217751x19501185Shuang Han, Gang Li, Xiang Zhou, Quan-Lin Jie
The measurement of Born cross-section of [Formula: see text] process is one of the major goals of the future Circular Electron Positron Collider, which may reach a precision of 0.5% at 240 GeV. Such unprecedented precision must be guaranteed by both theoretical and experimental sides, such as the calculations of high order corrections, the knowledge of the [Formula: see text] line shape. Uncertainty
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The semi-constrained NMSSM in light of muon g-2, LHC, and dark matter constraintsChinese Physics C (IF 2.944) Pub Date : 2018-09-01 ,DOI:10.1088/1674-1137/42/10/103109Kun Wang, Fei Wang, Jingya Zhu, Quanlin Jie
The semi-constrained NMSSM (scNMSSM) extends the MSSM by a singlet field, and requires unification of the soft SUSY breaking terms in the squark and slepton sectors, while it allows that in the Higgs sector to be different. We try to interpret the muon g-2 in the scNMSSM, under the constraints of 125 GeV Higgs data, B physics, searches for low and high mass resonances, searches for SUSY particles at
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Interleukin-33 Predicts Poor Prognosis and Promotes Renal Cell Carcinoma Cell Growth Through its Receptor ST2 and the JNK Signaling Pathway.Cellular Physiology and Biochemistry Pub Date : 2018-05-16 ,DOI:10.1159/000489766Chang-Wen Wu,Yi-Guo Wu,Cheng Cheng,Zheng-Dong Hong,Zi-Min Shi,Shuang-Quan Lin,Jie Li,Xiao-Yi He,An-Yi Zhu
BACKGROUND/AIMS Renal cell carcinoma (RCC) is currently the ninth most common cancer in men. Interleukin (IL)-33 expression has previously been associated with a number of cancers; however, its biological role in RCC is poorly understood. In this study, we sought to elucidate the role of IL-33 in RCC. METHODS Serum IL-33 levels were measured by ELISA. IL-33 expression in clinical RCC samples was examined
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Interleukin-33 Predicts Poor Prognosis and Promotes Renal Cell Carcinoma Cell Growth Through its Receptor ST2 and the JNK Signaling PathwayCellular Physiology and Biochemistry Pub Date : 2018-01-01 ,DOI:10.1159/000489766Chang-wen Wu, Yi-guo Wu, Cheng Cheng, Zheng-dong Hong, Zi-min Shi, Shuang-quan Lin, Jie Li, Xiao-yi He, An-yi Zhu
Background/Aims: Renal cell carcinoma (RCC) is currently the ninth most common cancer in men. Interleukin (IL)-33 expression has previously been associated with a number of cancers; however, its biological role in RCC is poorly understood. In this study, we sought to elucidate the role of IL-33 in RCC. Methods: Serum IL-33 levels were measured by ELISA. IL-33 expression in clinical RCC samples was
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Implementing the density matrix embedding theory with the hierarchical mean-field approachComputer Physics Communications (IF 4.717) Pub Date : 2016-07-01 ,DOI:10.1016/j.cpc.2016.03.004Jingbo Qin, Quanlin Jie, Zhuo Fan
Abstract We show an implementation of density matrix embedding theory (DMET) for the spin lattice of infinite size. It is indeed a special form of hierarchical mean-field (HMF) theory. In the method, we divide the lattice into a small part and a large part. View the small part as an impurity, embedding in the large part, which is viewed as the environment. We deal the impurity with a high accuracy
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Preliminary study of light yield dependence on LAB liquid scintillator compositionChinese Physics C (IF 2.944) Pub Date : 2015-09-01 ,DOI:10.1088/1674-1137/39/9/096003Xing-Chen Ye, Bo-Xiang Yu, Xiang Zhou, Li Zhao, Ya-Yun Ding, Meng-Chao Liu, Xue-Feng Ding, Xuan Zhang, Quan-Lin Jie, Li Zhou, Jian Fang, Hai-Tao Chen, Wei Hu, Shun-Li Niu, Jia-Qing Yan, Hang Zhao, Dao-Jin Hong
Liquid scintillator (LS) will be adopted as the detector material in JUNO (Jiangmen Underground Neutrino Observatory). The energy resolution requirement of JUNO is 3%, which has never previously been reached. To achieve this energy resolution, the light yield of liquid scintillator is an important factor. PPO (the fluor) and bis-MSB (the wavelength shifter) are the two main materials dissolved in LAB
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An efficient implementation of the hierarchical mean-field theory with large blockThe European Physical Journal B (IF 1.398) Pub Date : 2014-12-03 ,DOI:10.1140/epjb/e2014-50054-0Jingbo Qin, Quanlin Jie, Zhuo FanWe present an efficient implementation of the hierarchical mean-field theory with large block in quantum spin systems. The wave function is a product of the large block states. Each large block state is a superposition of products of small block states. Our result is very close to that of the hierarchical mean-field in a numerical cost effective way. We test our method on a frustrated spin lattice ...
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Approach the fluctuation of eigenstates around the avoided level crossing by two-level dynamicsZeitschrift für Physik B Condensed Matter Pub Date : 2014-02-09 ,DOI:10.1007/s002570050463Quan-lin Jie,Shun-Jin Wang,Lian-Fu WeiFrom level dynamics, we show that when two levels come to an avoided level crossing, violent fluctuations of the corresponding eigenstates are similar to a two level process: rapid mixing of the two eigenstates. This can be checked sensitively by the expectation values of a smooth observable and its derivative with respect to the strength parameter of perturbation. In Husimi distribution, the mixing ...
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Gauge covariant construction of the coherent states for a time-dependent harmonic oscillator by algebraic dynamical methodZeitschrift für Physik B Condensed Matter Pub Date : 2014-02-05 ,DOI:10.1007/s002570050323Lian-Fu Wei,Shun-Jin Wang,Quan-Lin JieTime-dependent coherent states for a time-dependent harmonic oscillator are constructed in the framework of algebraic dynamics. These coherent states are gauge-covariant, and its time evolution is governed only by the solutions of a linear differential equation which describes the motion of the corresponding classical timedependent harmonic oscillator. Its non-classical and quantum statistical properties ...
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Fabrication and optical properties of InGaN/GaN multiple quantum well light emitting diodes with amorphous BaTiO3ferroelectric filmChinese Physics B (IF 1.652) Pub Date : 2012-06-01 ,DOI:10.1088/1674-1056/21/6/067702Jing Peng, Chuan-Ju Wu, Tang-You Sun, Wen-Ning Zhao, Xiao-Feng Wu, Wen Liu, Shuang-Bao Wang, Quan-Lin Jie, Zhi-Mou XuBaTiO3 (BTO) ferroelectric thin films are prepared by the sol-gel method. The fabrication and the optical properties of an InGaN/GaN multiple quantum well light emitting diode (LED) with amorphous BTO ferroelectric thin film are studied. The photoluminescence (PL) of the BTO ferroelectric film is attributed to the structure. The ferroelectric film which annealed at 673 K for 8 h has the better PL property ...
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Approximating the ground state of fermion systems by multiple determinant states: matching pursuit approach.Physical Review E (IF 2.707) Pub Date : 2008-03-21 ,DOI:10.1103/physreve.77.026705Quanlin Jie
We present a simple and stable numerical method to approximate the ground state of a quantum many-body system by multiple determinant states. This method searches these determinant states one by one according to the matching pursuit algorithm. The first determinant state is identical to that of the Hartree-Fock theory. Calculations for a two-dimensional Hubbard model serve as a demonstration.
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Quantum-classical correspondence in entanglement production: Entropy and classical toriPhysical Review A (IF 2.971) Pub Date : 2008-01-14 ,DOI:10.1103/physreva.77.012312Shi-hui Zhang,Quan-lin Jie
We analyze the connections between entanglement dynamics and classical trajectories in a semiclassical regime for two systems: A pair of coupled oscillators and the Jaynes-Cummings model. We find that entanglement production depends on classical invariant tori and such phenomenon is closely related to the power spectra of classical trajectories. Classical power spectrum with a larger number of frequency
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Modification to the pre-factor of the semiclassical propagatorEPL (IF 1.958) Pub Date : 2005-03-01 ,DOI:10.1209/epl/i2004-10411-3Quanlin Jie,Bambi Hu,Baowen Li
We modify the pre-factor of the semiclassical propagator to improve its efficiency in practical implementations. The new pre-factor represents the smooth portion of an orbit's contribution, and leads to fast convergence in numerical calculations. As an illustration of the accuracy and efficiency of the resultant propagator, we numerically calculate overlaps between quantum and semiclassical wave functions
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Modified conjugate gradient method for diagonalizing large matrices.Physical Review E (IF 2.707) Pub Date : 2003-12-20 ,DOI:10.1103/physreve.68.056706Quanlin Jie,Dunhuan Liu
We present an iterative method to diagonalize large matrices. The basic idea is the same as the conjugate gradient (CG) method, i.e, minimizing the Rayleigh quotient via its gradient and avoiding reintroducing errors to the directions of previous gradients. Each iteration step is to find lowest eigenvector of the matrix in a subspace spanned by the current trial vector and the corresponding gradient
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Classical integrability and quantum velocity fieldsEPL (IF 1.958) Pub Date : 2002-03-01 ,DOI:10.1209/epl/i2002-00580-yBambi Hu,Quanlin Jie,Jianzhong Ma,Jianzhong GuWe study a stationary velocity field, defined via the probability current density for an energy eigenstate of a quantum system, and its classical analog determined by the Hamilton-Jacobi equation. For classically integrable systems, the quantum-classical correspondence can be properly established by specifying constants of motion in addition to the Hamiltonian. For classically chaotic systems, the ...
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General initial value form of the semiclassical propagatorPhysical Review A (IF 2.971) Pub Date : 2001-03-16 ,DOI:10.1103/physreva.63.044102Bambi Hu,Quanlin Jie,Baowen Li,Shunjin WangWe show a general initial value form of the semiclassical propagator. Similar to cellular dynamics, this formulation involves only the nearby orbits approximation: the evolution of nearby orbits is approximated by linearized dynamics. This phase space smearing formulation keeps the accuracy of the original Van Vleck\char21{}Gutzwiller propagator. As an illustration, we present a simple initial value ...
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General features of quantum chaos and its relevance to nuclear physicsPhysical Review C (IF 3.199) Pub Date : 2000-12-18 ,DOI:10.1103/physrevc.63.014309Shun-Jin Wang, Quanlin JieSome general features of the eigenenergies and the eigenwave functions of a chaotic quantum system are investigated by level dynamics in connection with nuclear physics. It is shown that the chaotic property of the eigensolutions is due to a large number of avoided level crossings. The critical strength of the perturbation for onset of quantum chaos is that the average value of the matrix elements ...
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Fano Resonance and Persistent Currents in a Mesoscopic Open Ring with a Flux Loop in Side-BranchChinese Physics Letters (IF 2.293) Pub Date : 1998-02-01 ,DOI:10.1088/0256-307x/15/2/019Lian-fu Wei, Shun-jin Wang, Huan-yu Jia, Quan-lin JiePersistent circulating currents in a mesoscopic open ring with side-branch structures are derived by transfer matrix method in the framework of quantum waveguide theory on networks. The behavior of transmission probability may show the Fano resonance in the presence of geometric scattering of side-branch structures. It is shown that persistent circulating currents in the main loop with equal length ...
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Behavior of the Hamiltonian's Eigenstates Around the Avoided Level CrossingCommunications in Theoretical Physics (IF 2.877) Pub Date : 1997-01-30 ,DOI:10.1088/0253-6102/27/1/41Quan-Lin Jie, Gong-Ou Xu, Wen-Ge WangWe numerically show the changing of eigenstates of the Hamiltonian as a function of a control parameter governing the strength of a non-integrable perturbation. The eigenstates change abruptly at avoided level crossing. After the avoided level crossing, they tend to restore their original form before the avoided level crossing, and exchange their distribution, especially for those which can be treated ...
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Numerical Evidence of Quantum Correspondence to the Classical ErgodicityCommunications in Theoretical Physics (IF 2.877) Pub Date : 1996-09-15 ,DOI:10.1088/0253-6102/26/2/191Quan-Lin Jie, Gong-Ou XuNumerical experiment in Lipkin model shows that, in quantum system with global chaotic classical limit, the temporal mean of the expectation value of an observable is approximately equal to the average over the basic states of Hilbert space, if the wavefunction is initially either a coherent wave packet or the common eigenstates of a complete set of observables, and the observable is independent of ...
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On structural instability of states of chaotic quantum systemsPhysics Letters A (IF 2.707) Pub Date : 1995-01-01 ,DOI:10.1016/0375-9601(94)00901-zXu Gong-ou, Quan-lin JieBased on quantum canonical representations corresponding to the same subgroup chain of the dynamical group and the quantum canonical transformation between them, the structural instability of states of chaotic quantum systems due to a sensitive dependence on the initial condition is discussed. Numerical illustrations are provided with a model system which has been shown to be classically chaotic. ...
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