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中国物理B（英文版）
中国物理B（英文版）

欧阳钟灿

月刊

1674-1056

010-82649026 82649519

100080

北京603信箱

中国物理B（英文版）/Journal Chinese Physics　BCSCDCSTPCD北大核心EISCI
查看更多>>该刊与《物理学报》是中国物理学会主办的物理学英文和中文的综合性国际学术月刊。刊登物理学科领域中，国内外未曾公开发表的具有创新性的科学研究最新成果。内容包括物理学各领域的理论、实验技术及应用。两刊内容不重复。两刊以论文水平高、创新性强，发表速度快的特点，受到国内外物理学工作者的好评和关注。被国际著名的SCI等10种以上检索系统收录。曾多次被评为中国科学院优秀期刊一等奖，1999，2003，2005年荣获第一、第二和第三届国家期刊奖，2001年被国家新闻出版总署评为“中国期刊方阵”中的双高（高知名度、高学术水平）期刊。2001，2002，2003年两刊都评为百种中国杰出期刊。
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    Spin fluctuations and orbital-selective superconductivity in Ba2CuO4-y:A FLEX study

    郑裴俊全亚民邹良剑
    173-185页
    查看更多>>摘要：Recently discovered Ba2CuO4-y provides new perspectives to the study of high-temperature superconductivity.Whereas,little is known about the spin dynamics of this material.In this work,we employ the fluctuation exchange(FLEX)approximation within the framework of spin-fluctuation mediated superconductivity to examine the behavior of the spin fluctuations of a two-orbital Hubbard model for Ba2CuO4-y.Our calculations reveal an extraordinary spin resonance mode coupled to the superconducting state in the hole-underdoped regime.Furthermore,we confirm that the coupling between the electrons and this resonance mode can lead to a dip-like feature in the electronic spectrum as a feedback effect.In the hole-overdoped regime,by incorporating self energy into our calculations,we obtain orbital-dependent renormalizations and show how these self-energy effects can lead to the detailed gap structures and the orbital-selective superconductivity,which could not be obtained in a previous study using random phase approximation(RPA).This research may shed new light on searching for unconventional superconductors with higher transition temperatures.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Chiral polaritons in semiconductor perovskite metasurface enhanced by bound states in the continuum

    汪顿Albert Y.XiongJulia Q.Zhang佘增德...
    186-194页
    查看更多>>摘要：The exploration of novel chiral optical platforms holds both fundamental and practical importances,which have shown great promise towards applications in valleytronics,chiral sensing and nanoscopic chiroptics.In this work,we combine two key concepts—chiral bound states in the continuum and exciton polaritons—to showcase a strong chiral response from polaritons.Using the finite element method,we numerically design a CsPbBr3 based metasurface that supports intrinsically chiral bound states in the continuum and verify the chirality by calculating the reflection spectrum and eigen-polarization mapping.We further demonstrate chirality-dependent exciton polariton angular dispersion arising from the strong coupling between the chiral BIC and excitons in CsPbBr3 by simulating the polariton angle-resolved absorption spectrum.Reciprocity analysis reveals that the polariton photoluminescence in different momentum space locations is selectively enhanced by chiral pumping light.Our results suggest a promising first step towards chiral polaritonics.
      原文链接:
    • 万方数据
    • 维普

    Deep-learning-assisted optical communication with discretized state space of structured light

    张敏洋陈东旭阮鹏样刘俊...
    195-201页
    查看更多>>摘要：The rich structure of transverse spatial modes of structured light has facilitated their extensive applications in quantum information and optical communication.The Laguerre-Gaussian(LG)modes,which carry a well-defined orbital angular momentum(OAM),consist of a complete orthogonal basis describing the transverse spatial modes of light.The application of OAM in free-space optical communication is restricted due to the experimentally limited OAM numbers and the complex OAM recognition methods.Here,we present a novel method that uses the advanced deep learning technique for LG modes recognition.By discretizing the spatial modes of structured light,we turn the OAM state regression into classification.A proof-of-principle experiment is also performed,showing that our method effectively categorizes OAM states with small training samples and the accuracy exceeds 99％from three-dimensional(3D)to fifteen-dimensional(15D)space.By assigning each category a classical information,we further apply our approach to an image transmission task,achieving a transmission accuracy of 99.58％,which demonstrates the ability to encode large data with low OAM number.This work opens up a new avenue for achieving high-capacity optical communication with low OAM number based on structured light.
      原文链接:
    • 万方数据
    • 维普

    Vortex clusters and their active control in a cold Rydberg atomic system with PT-symmetric Bessel potential

    范灼石逸王航赵元...
    202-209页
    查看更多>>摘要：We propose an approach for generating robust two-dimensional(2D)vortex clusters(VCs)in a Rydberg atomic system by utilizing parity-time(PT)symmetric optical Bessel potential.We show that the system supports novel multi-core VCs with four and eight cores,corresponding to topological charges 2 and 4,respectively.The stability of these VCs can be dynamically adjusted through the manipulation of the gain-loss component,Kerr nonlinearities,and the degree of nonlocality inherent in the Rydberg atoms.These VCs are confined within the first lattice well of the Bessel potential,and both the power and width of lights undergo a quasi-periodic breathing phenomenon,which is attributed to the power exchange between the light fields and Bessel potential.Both self-attractive and self-repulsive Kerr interactions can sustain robust VCs within this system.The insights presented here not only facilitate the creation and manipulation of 2D VCs through PT-symmetric potentials but also pave the way for potential applications in optical information processing and transmission.
      原文链接:
    • 万方数据
    • 维普

    Quantum state estimation based on deep learning

    肖皓文韩枝光
    210-219页
    查看更多>>摘要：We used deep learning techniques to construct various models for reconstructing quantum states from a given set of coincidence measurements.Through simulations,we have demonstrated that our approach generates functionally equiva-lent reconstructed states for a wide range of pure and mixed input states.Compared with traditional methods,our system offers the advantage of faster speed.Additionally,by training our system with measurement results containing simulated noise sources,the system shows a significant improvement in average fidelity compared with typical reconstruction meth-ods.We also found that constraining the variational manifold to physical states,i.e.,positive semi-definite density matrices,greatly enhances the quality of the reconstructed states in the presence of experimental imperfections and noise.Finally,we validated the correctness and superiority of our model by using data generated on IBM Quantum Platform,a real quantum computer.
      原文链接:
    • 万方数据
    • 维普

    Tunable phonon-photon coupling induces double magnomechanically induced transparency and enhances slow light in an atom-opto-magnomechanical system

    M'bark AmgharNoura ChabarMohamed Amazioug
    220-227页
    查看更多>>摘要：We theoretically investigate the magnomechanically induced transparency phenomenon,Fano resonance and the slow-fast light effect in the situation where an atomic ensemble is placed inside the hybrid cavity of an opto-magnomechanical system.The system is driven by dual optical and phononic drives.We show double magnomechanically induced transparency in the probe output spectrum by exploiting the phonon-photon coupling strength.Then,we study the effects of the decay rate of the cavity and the atomic ensemble on magnomechanically induced transparency.In addition,we demonstrate that effective detuning of the cavity field frequency changes the transparency window from a symmetrical to an asymmetrical profile,resembling Fano resonances.Further,the fast and slow light effects in the system are explored.We show that the slow light profile is enhanced by adjusting the phonon-photon coupling strength.This result may have potential applications in quantum information processing and communication.
      原文链接:
    • 万方数据
    • 维普

    Experimental test of an extension of the Rosenzweig-Porter model to mixed integrable-chaotic systems experiencing time-reversal invariance violation

    张晓东车炯宁Barbara Dietz
    228-239页
    查看更多>>摘要：We report on the theoretical and experimental investigations of the transition of a typical quantum system with mixed regular-integrable classical dynamics to one with violated time-reversal(T)invariance.The measurements are performed with a flat superconducting microwave resonator with circular shape in which chaoticity is induced by using either long antennas or inserting two circular disks into the cavity,and by magnetizing a ferrite disk placed at its center,which leads to violation of T invariance.We propose an extension of the Rosenzweig-Porter(RP)model,which interpolates between mixed regular-chaotic instead of integrable dynamics and fully chaotic dynamics with violated T-invariance,and derive a Wigner-surmise like analytical expression for the corresponding nearest-neighbor spacing distribution.We propose a procedure involving this result and those for the RP model to determine the size of(Γ)-invariance violation and chaoticity and validate it employing the experimental eigenfrequency spectra.
      原文链接:
    • 万方数据
    • 维普

    Coexisting and multiple scroll attractors in a Hopfield neural network with a controlled memristor

    马青青陆安江黄智
    240-249页
    查看更多>>摘要：A method of generating multi-double scroll attractors is proposed based on the memristor Hopfield neural network(HNN)under pulse control.First,the original hyperbolic-type memristor is added to the neural network mathematical model,and the influence of this memristor on the dynamic behavior of the new HNN is analyzed.The numerical results show that after adding the memristor,the abundant dynamic behaviors such as chaos coexistence,period coexistence and chaos period coexistence can be observed when the initial value of the system is changed.Then the logic pulse is added to the external memristor.It is found that the equilibrium point of the HNN can multiply and generate multi-double scroll attractors after the pulse stimulation.When the number of logical pulses is changed,the number of multi-double scroll attractors will also change,so that the pulse can control the generation of multi-double scroll attractors.Finally,the HNN circuit under pulsed stimulation was realized by circuit simulation,and the results verified the correctness of the numerical results.
      原文链接:
    • 万方数据
    • 维普

    A fractional-order chaotic Lorenz-based chemical system:Dynamic investigation,complexity analysis,chaos synchronization,and its application to secure communication

    Haneche NabilHamaizia Tayeb
    250-263页
    查看更多>>摘要：Synchronization of fractional-order chaotic systems is receiving significant attention in the literature due to its appli-cations in a variety of fields,including cryptography,optics,and secure communications.In this paper,a three-dimensional fractional-order chaotic Lorenz model of chemical reactions is discussed.Some basic dynamical properties,such as stability of equilibria,Lyapunov exponents,bifurcation diagrams,Poincaré map,and sensitivity to initial conditions,are studied.By adopting the Adomian decomposition algorithm(ADM),the numerical solution of the fractional-order system is obtained.It is found that the lowest derivative order in which the proposed system exhibits chaos is q=0.694 by applying ADM.The result has been validated by the existence of one positive Lyapunov exponent and by employing some phase diagrams.In addition,the richer dynamics of the system are confirmed by using powerful tools in nonlinear dynamic analysis,such as the 0-1 test and C0 complexity.Moreover,modified projective synchronization has been implemented based on the stability theory of fractional-order systems.This paper presents the application of the modified projective synchronization in secure communication,where the information signal can be transmitted and recovered successfully through the channel.MATLAB simulations are provided to show the validity of the constructed secure communication scheme.
      原文链接:
    • 万方数据
    • 维普

    Suppression of the vapor cell temperature error in a spin-exchange relaxation-free comagnetometer

    刘佳丽姜丽伟方驰赵鑫...
    264-270页
    查看更多>>摘要：The fluctuation of the vapor cell temperature leads to the variations of the density of the alkali metal atoms,which seriously damages the long-term stability of the spin-exchange relaxation-free(SERF)comagnetometer.To address this problem,we propose a novel method for suppressing the cell temperature error by manipulating the probe laser frequency.A temperature coefficient model of the SERF comagnetometer is established based on the steady-state response,which indicates that the comagnetometer can be tuned to a working point where the output signal is insensitive to the cell tem-perature fluctuation,and the working point is determined by the relaxation rate of the alkali metal atoms.The method is verified in a K-Rb-21Ne comagnetometer,and the experimental results are consistent with the theory.The theory and method presented here lay a foundation for the practical applications of the SERF comagnetometer.
      原文链接:
    • 万方数据
    • 维普