Physical Review E最新文献_第8页

Entanglement-assisted charging of quantum batteries within optomechanical framework. 光力学框架下量子电池的纠缠辅助充电。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/9vv8-s8r1

Abbas Shokri, Esfandyar Faizi, Mohammad B Arjmandi

{"title":"Entanglement-assisted charging of quantum batteries within optomechanical framework.","authors":"Abbas Shokri, Esfandyar Faizi, Mohammad B Arjmandi","doi":"10.1103/9vv8-s8r1","DOIUrl":"https://doi.org/10.1103/9vv8-s8r1","url":null,"abstract":"In this study, we propose an optomechanical cavity as a promising platform for charging a quantum battery embedding two two-level atoms. We assume the atoms and the single optical mode are initialized in their corresponding ground states while the mechanical resonator can be either in vacuum or its first excited state. Our findings reveal a remarkable correspondence between the generated entanglement between the atoms and the ergotropy of the quantum battery, i.e., the available energy by unitary operations. This observation of such a high degree of similarity between entanglement and ergotropy seems to be unprecedented. Furthermore, both linear and nonlinear optomechanical couplings are shown to enhance ergotropy provided being properly adjusted. Additionally, we examine the statistical properties of the optical and mechanical modes using the Mandel parameter. Our results indicate that the nonclassicality of the optical mode significantly boosts the available energy. In contrast, less negative Mandel parameter values, reflecting decreased nonclassicality, are preferable to assist the charging process. These insights suggest the possibility of using quantum features to optimize the efficiency of quantum batteries.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-1","pages":"064117"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Localized fermions on the triangular lattice with Ising-like interactions. 具有伊辛类相互作用的三角晶格上的定域费米子。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/4lmb-6qqv

Lubomíra Regeciová, Konrad Jerzy Kapcia

{"title":"Localized fermions on the triangular lattice with Ising-like interactions.","authors":"Lubomíra Regeciová, Konrad Jerzy Kapcia","doi":"10.1103/4lmb-6qqv","DOIUrl":"https://doi.org/10.1103/4lmb-6qqv","url":null,"abstract":"The model of localized fermions on the triangular lattice is analyzed in means of the Monte Carlo simulations in the grand canonical ensemble. The Hamiltonian of the system has a form of the extended Hubbard model (at the atomic limit) with nearest-neighbor Ising-like magnetic J interactions and onsite Coulomb U interactions. The model is investigated for both signs of J, arbitrary U interaction, and arbitrary chemical potential μ (or, equivalently, arbitrary particle concentration n). Based on the specific heat capacity and sublattice magnetization analyses, the phase diagrams of the model are determined. For ferromagnetic case (J<0), the transition from the ordered phase (which is a standard ferromagnet and can be stable up to k_{B}T/|J|≈0.61) is found to be second order (for sufficiently large temperatures k_{B}T/|J|≳0.2) or first order (for -1<U/|J|<-0.65 at the half-filling, i.e., n=1). In the case of J>0, the ordered phase occurs in a range of -1/2<U/|J|<0 (for n=1), while for larger U the state with short-range order is also found (also for n≠1). The ordered phase is characterized by an antiferromagnetic arrangement of magnetic moments in two sublattices forming the hexagonal lattice. The transition from this ordered phase, which is found also for μ≠0 (n≠1) and U/|J|>-1/2 is always second order for any model parameters. The ordered phase for J>0 can be stable up to k_{B}T/|J|≈0.06.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-1","pages":"064132"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal number of agents in a collective search and when to launch them. 集体搜索中代理的最优数量和启动它们的时间。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/PhysRevE.111.064112

Hugues Meyer, Heiko Rieger

引用次数: 0

Experimental quantification of strongly coupled clusters in two-dimensional complex plasmas to understand cluster to continuum transitions. 二维复杂等离子体中强耦合团簇的实验量化，以理解团簇到连续体的转变。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/tdwc-4npl

Ravi Kumar, Saikat C Thakur, Edward Thomas, Ranganathan Gopalakrishnan

{"title":"Experimental quantification of strongly coupled clusters in two-dimensional complex plasmas to understand cluster to continuum transitions.","authors":"Ravi Kumar, Saikat C Thakur, Edward Thomas, Ranganathan Gopalakrishnan","doi":"10.1103/tdwc-4npl","DOIUrl":"https://doi.org/10.1103/tdwc-4npl","url":null,"abstract":"We investigate static and dynamic behaviors of experimentally realized strongly coupled two-dimensional finite clusters in a complex (dusty) plasma. Clusters, ranging in size from N (number of grains) = 1 to 50 are obtained using a highly precise control arm assembly BECAA (bidirectional electrode control arm assembly) [24R. Kumar et al., Rev. Sci. Instrum. 95, 053503 (2024)10.1063/5.0203259], without any gaps and maintaining constant plasma discharge conditions. Crystalline (static) behavior of these clusters is characterized by the pair correlation function, shell structures,- and configurations, which are found to be in good agreement with simulation and previous experiments. The dynamic behavior of a cluster is quantified through recorded trajectories of individual grains and identification of their respective shells over time. Quantities such as angular rotation, intershell transitions and different regimes of mean-squared displacement (MSD) are highlighted to provide insights into the transition from individual to collective or bulk behavior of clusters. These transitions are typically studied via simulations due to significant challenges in controlling the number of grains in a complex plasma, whereas simulations allow easy adjustment of grain number. We have overcome this hurdle using BECAA and produced clusters with N=1-50 systematically and investigated their structures and dynamic properties to understand the individual-to-continuum transition.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-2","pages":"065215"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly compressed spin-singlet Be at a million Kelvin. 高度压缩的自旋单线态Be达到了一百万开尔文。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/m7x8-ds58

M W C Dharma-Wardana, Dennis D Klug

{"title":"Highly compressed spin-singlet Be at a million Kelvin.","authors":"M W C Dharma-Wardana, Dennis D Klug","doi":"10.1103/m7x8-ds58","DOIUrl":"https://doi.org/10.1103/m7x8-ds58","url":null,"abstract":"Experiments at the U.S. National Ignition Facility (NIF) [Döppner et al., Nature (London) 618, 270 (2023)0028-083610.1038/s41586-023-05996-8] have created highly compressed hot hydrogenlike Be plasmas. Published analyses of the the NIF experiment have used finite-T multiatom density-functional theory with Molecular dynamics, and Path-Integral Monte Carlo simulations. These methods are very expensive to implement and often lack physical transparency. Here we (i) relate their results to simpler first-principles average-atom results, (ii) establish the feasibility of rapid data analysis, with good accuracy and gain in physical transparency, and (iii) show that the NIF experiment reveals high-T spin-singlet pairing of hydrogenlike Be ions with near neighbors. Our analysis predicts such stabilization over a wide range of compressed densities for temperatures close to two million Kelvin. Calculations of structure factors S(k) for electrons or ions, the Raleigh weight and other quantities of interest to x-ray Thomson scattering are presented. We find that the NIF data at the scattering wave vector k_{sc} of 7.89Å^{-1} are more consistent with a density of 20±2g/cm^{3}, mean ionization Z[over ¯]=3.25, at a temperature of ≃ 1 800 000 K than the 34g/cm^{3},Z[over ¯]=3.4 proposed by the NIF team. The relevance of ion-electron coupled-modes in studying small k_{sc} data is indicated.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-2","pages":"065208"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Permutation entropy for the characterization of the attractive Hamiltonian mean-field model. 描述吸引哈密顿平均场模型的置换熵。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/PhysRevE.111.064205

Melissa G Fuentealba, Danilo M Rivera, Roberto E Navarro

{"title":"Permutation entropy for the characterization of the attractive Hamiltonian mean-field model.","authors":"Melissa G Fuentealba, Danilo M Rivera, Roberto E Navarro","doi":"10.1103/PhysRevE.111.064205","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.064205","url":null,"abstract":"The Hamiltonian mean-field (HMF) model is a long-range interaction system that exhibits quasistationary states (QSS), which persist for long times before reaching thermodynamic equilibrium. These states are traditionally characterized by homogeneous/demagnetized or nonhomogeneous/magnetized phase-space structures, separated by an out-of-equilibrium phase transition that depends on the initial energy u_{0} and magnetization M_{0} of the system. However, the magnetization also exhibits fluctuations around its mean value in time, which can provide additional insights into the nature of the QSS. In this study, the permutation entropy H and the statistical complexity C are used as tools to characterize the dynamical properties of these magnetization fluctuations. It is found that most data points lie above the entropy-complexity curve for stochastic processes with a power-law spectrum (k noise), suggesting that the magnetization retains more structure than purely stochastic processes. As the initial energy u_{0} increases, both H and C exhibit global minima that align closely with the critical energy u^{*} separating magnetized and demagnetized QSSs. This agreement is particularly strong for M_{0}≲0.4, where a first-order out-of-equilibrium phase transition has been reported for the HMF model. Below this transition, magnetized QSSs are associated with more ordered fluctuations, exhibiting fewer correlated structures. Above this transition, demagnetized QSSs are characterized by fluctuations that shift toward more complex and more disordered dynamics, with an increasing number of correlated structures as u_{0} increases.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-1","pages":"064205"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precision bounds for multiple currents in open quantum systems. 开放量子系统中多电流的精度边界。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/PhysRevE.111.064107

Saulo V Moreira, Marco Radaelli, Alessandro Candeloro, Felix C Binder, Mark T Mitchison

{"title":"Precision bounds for multiple currents in open quantum systems.","authors":"Saulo V Moreira, Marco Radaelli, Alessandro Candeloro, Felix C Binder, Mark T Mitchison","doi":"10.1103/PhysRevE.111.064107","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.064107","url":null,"abstract":"Thermodynamic (TUR) and kinetic (KUR) uncertainty relations are fundamental bounds constraining the fluctuations of current observables in classical, nonequilibrium systems. Several works have verified, however, violations of these classical bounds in open quantum systems, motivating the derivation of new quantum TURs and KURs that account for the role of quantum coherence. Here, we go one step further by deriving multidimensional KUR and TUR for multiple observables in open quantum systems undergoing Markovian dynamics. Our derivation exploits a multiparameter metrology approach, in which the Fisher information matrix plays a central role. Crucially, our bounds are tighter than previously derived quantum TURs and KURs for single observables, precisely because they incorporate correlations between multiple observables. We also find an intriguing quantum signature of correlations that is captured by the off-diagonal element of the Fisher information matrix, which vanishes for classical stochastic dynamics. By considering two examples, namely a coherently driven qubit system and the three-level maser, we demonstrate that the multidimensional quantum KUR bound can even be saturated when the observables are perfectly correlated.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 6-1","pages":"064107"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distributively induced quasispherical implosion for fusion. 核聚变的分布诱导准球形内爆。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/PhysRevE.111.065203

Shu-Chao Duan, Shao-Tong Zhou, Gang-Hua Wang, Ming-Xian Kan, Qiang Xu, Bo Xiao, Hai-Bin Ou, Long Xie, Qiang Wang

引用次数: 0

Noise balance and stationary distribution of stochastic gradient descent. 随机梯度下降的噪声平衡与平稳分布。

IF 2.4 3区物理与天体物理

Physical Review E Pub Date : 2025-06-01 DOI: 10.1103/PhysRevE.111.065303

Liu Ziyin, Hongchao Li, Masahito Ueda

引用次数: 0

Pseudoprospective forecasting of failure time. 失效时间的伪预期预测。