Physical Review A最新文献_第8页

Lattice-induced wave-function effects on trapped superfluids 陷落超流体的晶格诱导波函数效应

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.033310

Yeyang Zhang

引用次数: 0

Spin-noise-induced synchronization between non-overlapping laser beams 非重叠激光束之间的自旋噪声诱导同步

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.033105

Shiming Song, Min Jiang, Yushu Qin, Ze Wu, Haowen Su, Ren-bao Liu, Dieter Suter, Xinhua Peng

引用次数: 0

Geometric quantum discord of an arbitrary two-qudit state: Exact value and general upper bounds 任意双量子态的几何量子不和谐：精确值和一般上限

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.032410

Elena R. Loubenets, Louis Hanotel

{"title":"Geometric quantum discord of an arbitrary two-qudit state: Exact value and general upper bounds","authors":"Elena R. Loubenets, Louis Hanotel","doi":"10.1103/physreva.110.032410","DOIUrl":"https://doi.org/10.1103/physreva.110.032410","url":null,"abstract":"The geometric quantum discord of a two-qudit state has been studied in many papers; however, its exact analytical value in the explicit form is known only for a general two-qubit state, a general qubit-qudit state, and some special families of two-qudit states. Based on the general Bloch vectors formalism [E. R. Loubenets et al., J. Phys. A: Math. Theor. 54, 195301 (2021)], we find the explicit exact analytical value of the geometric quantum discord for an arbitrary two-qudit state of any dimension via the parameters of its correlation matrix and the Bloch vectors of its reduced states. This general analytical result includes all the known exact results on the geometric quantum discord only as particular cases and proves rigorously that the lower bound on the geometric discord presented in [S. Rana et al., Phys. Rev. A 85, 024102 (2012)] constitutes its exact value for each two-qudit state. Moreover, our general result allows us to find for an arbitrary two-qudit state, pure or mixed, the upper and lower bounds on its geometric quantum discord, expressed via the Hilbert space characteristics of this state.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"147 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Coherent collisional decoherence 相干碰撞退相干

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.033311

Leonardo Badurina, Clara Murgui, Ryan Plestid

{"title":"Coherent collisional decoherence","authors":"Leonardo Badurina, Clara Murgui, Ryan Plestid","doi":"10.1103/physreva.110.033311","DOIUrl":"https://doi.org/10.1103/physreva.110.033311","url":null,"abstract":"We study the decoherence of a system of <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi></math> noninteracting heavy particles (atoms) due to coherent scattering with a background gas. We introduce a framework for computing the induced phase shift and loss of contrast for arbitrary preparations of <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>N</mi></math>-particle quantum states. We find phase shifts that are inherently <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mo>(</mo><mi>N</mi><mo>≥</mo><mn>2</mn><mo>)</mo></mrow></math>-body effects and may be searched for in future experiments. We analyze simple setups, including a two-mode approximation of an interferometer. We study fully entangled <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mi>N</mi><mn>00</mn><mi>N</mi></mrow></math> states, which resemble the correlated positions in a matter interferometer, as well as totally uncorrelated product states that are representative of a typical state in an atom interferometer. We find that the extent to which coherent enhancements increase the rate of decoherence depends on the observable of interest, state preparation, and details of the experimental design. In the context of future ultralow-recoil (e.g., light dark matter) searches with atom interferometers we conclude that (i) there exists a coherently enhanced scattering phase which can be searched for using standard (i.e., contrast/visibility and phase) interferometer observables; (ii) although decoherence rates of one-body observables are not coherently enhanced, a coherently enhanced loss of contrast can still arise from dephasing; and (iii) higher statistical moments (which are immediately accessible in a counting experiment) are coherently enhanced and may offer a new tool with which to probe the soft scattering of otherwise undetectable particles in the laboratory.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"22 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Bulk and surface modes in a one-dimensional gyro-uniaxial photonic crystal 一维陀螺单轴光子晶体中的体模和面模

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.033514

Daniele B. Provenzano, Giuseppe C. la Rocca

引用次数: 0

Modification of the Bose-Hubbard model parameters in an optical lattice by two-particle Wannier functions 通过双粒子万尼尔函数修改光晶格中的玻色-哈伯德模型参数

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-10 DOI: 10.1103/physreva.110.033312

Shou-Long Chen

{"title":"Modification of the Bose-Hubbard model parameters in an optical lattice by two-particle Wannier functions","authors":"Shou-Long Chen","doi":"10.1103/physreva.110.033312","DOIUrl":"https://doi.org/10.1103/physreva.110.033312","url":null,"abstract":"In systems with periodic potential fields, building relatively local Wannier functions can significantly simplify the Hamiltonian and enhance our understanding of the system's ground state and dynamic properties. In this work, we improve the current method of building the Wannier functions of ultracold atomic systems, including the case in the presence or absence of interactions. In noninteracting systems, we propose a method to directly obtain the real-valued maximally localized Wannier functions (MLWFs) by using real-valued eigenstates, and verify the effectiveness of this method in a two-dimensional (2D) degenerate system. In interacting systems, we obtain the effect of high-energy bands on the lowest-energy band by using the accurate calculation results of the two-particle system. In the two-particle system, we consider the effect of the entanglement between the particles and obtain the optimal two-particle Wannier functions. These Wannier functions are then further utilized to obtain the parameters of the extended Bose-Hubbard model. The effectiveness of the method is verified by taking a one-dimensional (1D) system with contact interaction as an example. In the three-particle and four-particle systems, compared calculation results with the original system and the unmodified two-band Bose-Hubbard model, we find that the effective Hamiltonian is more accurate than the unmodified two-band model. This verifies the effectiveness of our method, and the parameters obtained can reflect the original system well, which provides an effective method for accurate modeling of interacting systems.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"6 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Gain-assisted control of the photonic spin Hall effect 增益辅助控制光子自旋霍尔效应

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-09 DOI: 10.1103/physreva.110.033104

Muhammad Waseem, Muzamil Shah, Gao Xianlong

{"title":"Gain-assisted control of the photonic spin Hall effect","authors":"Muhammad Waseem, Muzamil Shah, Gao Xianlong","doi":"10.1103/physreva.110.033104","DOIUrl":"https://doi.org/10.1103/physreva.110.033104","url":null,"abstract":"In the photonic spin Hall effect (SHE), also known as the transverse shift, incident light photons with opposite spins are spatially separated in the transverse direction due to the spin-orbit interaction of light. Here, we propose a gain-assisted model to control the SHE in the reflected probe light. In this model, a probe light is incident on a cavity containing a three-level dilute gaseous atomic medium, where the interaction between the atom and the control field follows two-photon Raman transitions. We show that the direction of photonic spin accumulations can be switched between positive and negative values across the Brewster angle in both the anomalous and normal dispersion regimes. For the same magnitude of control fields, the peak value of the photonic SHE is higher in the anomalous dispersion region compared to the normal dispersion regime. Additionally, the angular range around the Brewster angle is wider in the normal dispersion regime than in the anomalous dispersion region. Furthermore, the peak value of the photonic SHE and the angular range can be controlled by changing the Rabi frequencies of the control fields and the probe field detuning. The measurement of photonic SHE based on gain assistance may enable spin-related applications such as optical sensing.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"569 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Tensor rank and other multipartite entanglement measures of graph states 图状态的张量等级和其他多方纠缠度量

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-09 DOI: 10.1103/physreva.110.032409

Louis Schatzki, Linjian Ma, Edgar Solomonik, Eric Chitambar

{"title":"Tensor rank and other multipartite entanglement measures of graph states","authors":"Louis Schatzki, Linjian Ma, Edgar Solomonik, Eric Chitambar","doi":"10.1103/physreva.110.032409","DOIUrl":"https://doi.org/10.1103/physreva.110.032409","url":null,"abstract":"Graph states play an important role in quantum information theory through their connection to measurement-based computing and error correction. Prior work revealed elegant connections between the graph structure of these states and their multipartite entanglement. We continue this line of investigation by identifying additional entanglement properties for certain types of graph states. From the perspective of tensor theory, we tighten both upper and lower bounds on the tensor rank of odd ring states (<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mrow><mo>|</mo></mrow><msub><mi>R</mi><mrow><mn>2</mn><mi>n</mi><mo>+</mo><mn>1</mn></mrow></msub><mrow><mo>〉</mo></mrow></mrow></math>) to read <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><msup><mn>2</mn><mi>n</mi></msup><mo>+</mo><mn>1</mn><mo>≤</mo><mi>rank</mi><mrow><mo>(</mo><mrow><mrow><mo>|</mo></mrow><msub><mi>R</mi><mrow><mn>2</mn><mi>n</mi><mo>+</mo><mn>1</mn></mrow></msub><mrow><mo>〉</mo></mrow></mrow><mo>)</mo></mrow><mo>≤</mo><mn>3</mn><mo>×</mo><msup><mn>2</mn><mrow><mi>n</mi><mo>−</mo><mn>1</mn></mrow></msup></mrow></math>. Next we show that several multipartite extensions of bipartite entanglement measures are dichotomous for graph states based on the connectivity of the corresponding graph. Finally, we give a simple graph rule for computing the <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>n</mi></math>-tangle <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>τ</mi><mi>n</mi></msub></math>.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"99 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

State-selective charge exchange in collisions of multiply charged ions with H2 多电荷离子与 H2 碰撞中的状态选择性电荷交换

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-09 DOI: 10.1103/physreva.110.032805

N. D. Cariatore, S. Otranto

{"title":"State-selective charge exchange in collisions of multiply charged ions with H2","authors":"N. D. Cariatore, S. Otranto","doi":"10.1103/physreva.110.032805","DOIUrl":"https://doi.org/10.1103/physreva.110.032805","url":null,"abstract":"In this work, an improved classical trajectory Monte Carlo method is introduced to describe collisions of multiply charged ions with <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi mathvariant=\"normal\">H</mi><mn>2</mn></msub></math> molecules by merging two hydrogenic three-body models, conceived to improve the H(<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mn>1</mn><mi>s</mi></mrow></math>) electronic radial distribution, into the five-body treatment of Wood and Olson. Present results are contrasted against recently reported laboratory data and the multichannel Landau-Zener method for <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mrow><mi>Ne</mi></mrow><mrow><mn>9</mn><mo>+</mo></mrow></msup></math> and <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mrow><mi mathvariant=\"normal\">O</mi></mrow><mrow><mn>6</mn><mo>+</mo></mrow></msup></math> projectiles at intermediate to low impact energies. A reasonable agreement with the data is obtained at the <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>n</mi></math>-state selective level when considering a hydrogenic model that relies on an expansion over different nuclear charges. Complementary results for <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mrow><mi>He</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math> and <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mrow><mi>Fe</mi></mrow><mrow><mn>26</mn><mo>+</mo></mrow></msup></math> projectiles suggest that discrepancies among these models accentuate as the projectile charge is increased and the collision energy is lowered, and highlight the need for further joint experimental and theoretical studies.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"57 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 squeezed states in ring resonators: Beyond the undepleted-pump approximation 环形谐振器中的高挤压态：超越未耗尽泵近似值

IF 2.9 2区物理与天体物理

Physical Review A Pub Date : 2024-09-09 DOI: 10.1103/physreva.110.033709

Colin Vendromin, Yan Liu, Zhenshan Yang, J. E. Sipe

引用次数: 0