 作 者: ( "quanlin jie" OR "quanlin jie" )

Chinese Physics B (IF 1.652) Pub Date : 20210903 ,DOI:10.1088/16741056/ac0cdcHao Geng, Quanlin 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 nearcritical ...

Journal of the Physical Society of Japan (IF 1.933) Pub Date : 20210805 ,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 ...

Computer Physics Communications (IF 4.717) Pub Date : 20210401 ,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 blockproduct 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 ...

Chinese Physics C (IF 2.944) Pub Date : 20210312 ,DOI:10.1088/16741137/abe03cKun Wang, Jingya Zhu, Quanlin JieIn this study, we analyze the directdetection constraints of light dark matter in the nextto minimal supersymmetric standard model (NMSSM) with nonuniversal Higgs masses (NUHM); we specially focus on the correlation between higgsino asymmetry and spindependent (SD) cross section. We draw the following conclusions. (i) The SD cross section is proportional to the square of higgsino asymmetry in dark ...

Chinese Physics B (IF 1.652) Pub Date : 20200701 ,DOI:10.1088/16741056/ab8a3aWenLei Zhao,Quanlin JieWe investigate the quantum to classical transition induced by twoparticle 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 ...

Physica Status Solidi (B)  Basic Solid State Physics (IF 1.782) Pub Date : 20200210 ,DOI:10.1002/pssb.201900659Hao Geng, Zhuo Fan, Quanlin 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 ...

International Journal of Modern Physics A (IF 1.475) Pub Date : 20190729 ,DOI:10.1142/s0217751x19501185Shuang Han, Gang Li, Xiang Zhou, QuanLin JieThe measurement of Born crosssection 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 ...

Chinese Physics C (IF 2.944) Pub Date : 20180901 ,DOI:10.1088/16741137/42/10/103109Kun Wang, Fei Wang, Jingya Zhu, Quanlin JieThe semiconstrained 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 g2 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 ...

Cellular Physiology and Biochemistry Pub Date : 20180516 ,DOI:10.1159/000489766ChangWen Wu,YiGuo Wu,Cheng Cheng,ZhengDong Hong,ZiMin Shi,ShuangQuan Lin,Jie Li,XiaoYi He,AnYi ZhuBACKGROUND/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 IL33 in RCC. METHODS Serum IL33 levels were measured by ELISA. IL33 expression in clinical RCC samples was examined ...

Cellular Physiology and Biochemistry Pub Date : 20180101 ,DOI:10.1159/000489766Changwen Wu, Yiguo Wu, Cheng Cheng, Zhengdong Hong, Zimin Shi, Shuangquan Lin, Jie Li, Xiaoyi He, Anyi ZhuBackground/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 IL33 in RCC. Methods: Serum IL33 levels were measured by ELISA. IL33 expression in clinical RCC samples was ...

Computer Physics Communications (IF 4.717) Pub Date : 20160701 ,DOI:10.1016/j.cpc.2016.03.004Jingbo Qin, Quanlin Jie, Zhuo FanAbstract 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 meanfield (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 ...

Chinese Physics C (IF 2.944) Pub Date : 20150901 ,DOI:10.1088/16741137/39/9/096003XingChen Ye, BoXiang Yu, Xiang Zhou, Li Zhao, YaYun Ding, MengChao Liu, XueFeng Ding, Xuan Zhang, QuanLin Jie, Li Zhou, Jian Fang, HaiTao Chen, Wei Hu, ShunLi Niu, JiaQing Yan, Hang Zhao, DaoJin HongLiquid 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 bisMSB (the wavelength shifter) are the two main materials dissolved in LAB ...

The European Physical Journal B (IF 1.398) Pub Date : 20141203 ,DOI:10.1140/epjb/e2014500540Jingbo Qin, Quanlin Jie, Zhuo FanWe present an efficient implementation of the hierarchical meanfield 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 meanfield in a numerical cost effective way. We test our method on a frustrated spin lattice ...

Zeitschrift für Physik B Condensed Matter Pub Date : 20140209 ,DOI:10.1007/s002570050463Quanlin Jie,ShunJin Wang,LianFu 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 ...

Zeitschrift für Physik B Condensed Matter Pub Date : 20140205 ,DOI:10.1007/s002570050323LianFu Wei,ShunJin Wang,QuanLin JieTimedependent coherent states for a timedependent harmonic oscillator are constructed in the framework of algebraic dynamics. These coherent states are gaugecovariant, 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 nonclassical and quantum statistical properties ...

Chinese Physics B (IF 1.652) Pub Date : 20120601 ,DOI:10.1088/16741056/21/6/067702Jing Peng, ChuanJu Wu, TangYou Sun, WenNing Zhao, XiaoFeng Wu, Wen Liu, ShuangBao Wang, QuanLin Jie, ZhiMou XuBaTiO3 (BTO) ferroelectric thin films are prepared by the solgel 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 ...

Physical Review E (IF 2.707) Pub Date : 20080321 ,DOI:10.1103/physreve.77.026705Quanlin JieWe present a simple and stable numerical method to approximate the ground state of a quantum manybody 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 HartreeFock theory. Calculations for a twodimensional Hubbard model serve as a demonstration. ...

Physical Review A (IF 2.971) Pub Date : 20080114 ,DOI:10.1103/physreva.77.012312Shihui Zhang,Quanlin JieWe analyze the connections between entanglement dynamics and classical trajectories in a semiclassical regime for two systems: A pair of coupled oscillators and the JaynesCummings 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 ...

EPL (IF 1.958) Pub Date : 20050301 ,DOI:10.1209/epl/i2004104113Quanlin Jie,Bambi Hu,Baowen LiWe modify the prefactor of the semiclassical propagator to improve its efficiency in practical implementations. The new prefactor 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 ...

Physical Review E (IF 2.707) Pub Date : 20031220 ,DOI:10.1103/physreve.68.056706Quanlin Jie,Dunhuan LiuWe 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 ...

EPL (IF 1.958) Pub Date : 20020301 ,DOI:10.1209/epl/i200200580yBambi 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 HamiltonJacobi equation. For classically integrable systems, the quantumclassical correspondence can be properly established by specifying constants of motion in addition to the Hamiltonian. For classically chaotic systems, the ...

Physical Review A (IF 2.971) Pub Date : 20010316 ,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 ...

Physical Review C (IF 3.199) Pub Date : 20001218 ,DOI:10.1103/physrevc.63.014309ShunJin 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 ...

Chinese Physics Letters (IF 2.293) Pub Date : 19980201 ,DOI:10.1088/0256307x/15/2/019Lianfu Wei, Shunjin Wang, Huanyu Jia, Quanlin JiePersistent circulating currents in a mesoscopic open ring with sidebranch 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 sidebranch structures. It is shown that persistent circulating currents in the main loop with equal length ...

Communications in Theoretical Physics (IF 2.877) Pub Date : 19970130 ,DOI:10.1088/02536102/27/1/41QuanLin Jie, GongOu Xu, WenGe WangWe numerically show the changing of eigenstates of the Hamiltonian as a function of a control parameter governing the strength of a nonintegrable 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 ...

Communications in Theoretical Physics (IF 2.877) Pub Date : 19960915 ,DOI:10.1088/02536102/26/2/191QuanLin Jie, GongOu 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 ...

Physics Letters A (IF 2.707) Pub Date : 19950101 ,DOI:10.1016/03759601(94)00901zXu Gongou, Quanlin 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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