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Tunable Aharonov-Bohm cages through anti-PT-symmetric imaginary couplings 通过反PT对称虚耦合的可调谐Aharonov-Bohm笼
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-21 DOI: 10.1103/PhysRevA.108.023518
S. M. Zhang, H. Xu, L. Jin
{"title":"Tunable Aharonov-Bohm cages through anti-PT-symmetric imaginary couplings","authors":"S. M. Zhang, H. Xu, L. Jin","doi":"10.1103/PhysRevA.108.023518","DOIUrl":"https://doi.org/10.1103/PhysRevA.108.023518","url":null,"abstract":"The Aharonov-Bohm (AB) cage enables localized confinement with nondiffractive propagation for arbitrary excitation. In this study, we introduce an anti-parity-time (anti-$mathcal{PT}$) symmetric imaginary coupling in a generalized Creutz ladder to construct a non-Hermitian AB cage with tunable flat-band energy. We investigate compact localized states and complete localization dynamics, and show that non-Hermiticity affects the localization probability distributions and increases the oscillation period of the AB cage dynamics. Non-Hermitian engineering of the decoupled core of the AB cage is the essential point in our proposal. Our approach is widely applicable to a more general situation and can facilitate the manipulation of localization in physics.","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49626530","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
Multiscale simulation of high-order harmonic generation: From microscopic to macroscopic 高次谐波产生的多尺度模拟：从微观到宏观
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-18 DOI: 10.1103/physreva.108.023118
X. Tong
{"title":"Multiscale simulation of high-order harmonic generation: From microscopic to macroscopic","authors":"X. Tong","doi":"10.1103/physreva.108.023118","DOIUrl":"https://doi.org/10.1103/physreva.108.023118","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49292092","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
Controlling the symmetry of the photonic spin Hall effect by an optical vortex pair 用光学涡旋对控制光子自旋霍尔效应的对称性
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-18 DOI: 10.1103/physreva.108.023514
Weiming Zhen, Xi-Lin Wang, Jianping Ding, Hui-Tian Wang
{"title":"Controlling the symmetry of the photonic spin Hall effect by an optical vortex pair","authors":"Weiming Zhen, Xi-Lin Wang, Jianping Ding, Hui-Tian Wang","doi":"10.1103/physreva.108.023514","DOIUrl":"https://doi.org/10.1103/physreva.108.023514","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41791420","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: 2
Reconfigurable valley topological QED platform for qubit operation 量子比特操作的可重构谷拓扑QED平台
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-17 DOI: 10.1103/physreva.108.023513
Junhua Dong, B. Zou, Yongyou Zhang
{"title":"Reconfigurable valley topological QED platform for qubit operation","authors":"Junhua Dong, B. Zou, Yongyou Zhang","doi":"10.1103/physreva.108.023513","DOIUrl":"https://doi.org/10.1103/physreva.108.023513","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46697331","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
Tunable nonreciprocal photon correlations induced by directional quantum squeezing 定向量子压缩诱导的可调谐非互易光子相关
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-17 DOI: 10.1103/physreva.108.023716
Cai‐Peng Shen, Jia-Qiang Chen, Xue-feng Pan, Yu-Meng Ren, Xing-Liang Dong, Xin-Lei Hei, Yi-Fan Qiao, Peng-Bo Li
{"title":"Tunable nonreciprocal photon correlations induced by directional quantum squeezing","authors":"Cai‐Peng Shen, Jia-Qiang Chen, Xue-feng Pan, Yu-Meng Ren, Xing-Liang Dong, Xin-Lei Hei, Yi-Fan Qiao, Peng-Bo Li","doi":"10.1103/physreva.108.023716","DOIUrl":"https://doi.org/10.1103/physreva.108.023716","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48941922","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: 1
Resonant parametric photon generation in waveguide-coupled quantum emitter arrays 波导耦合量子发射阵列中共振参量光子的产生
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-16 DOI: 10.1103/physreva.108.023715
Egor S. Vyatkin, A. Poshakinskiy, A. Poddubny
{"title":"Resonant parametric photon generation in waveguide-coupled quantum emitter arrays","authors":"Egor S. Vyatkin, A. Poshakinskiy, A. Poddubny","doi":"10.1103/physreva.108.023715","DOIUrl":"https://doi.org/10.1103/physreva.108.023715","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48956118","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
Impact of coherent coupling of plasmonic dipole modes in far-field scattering of templated metallic nanoislands 等离子体偶极模式的相干耦合对模板金属纳米岛远场散射的影响
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-16 DOI: 10.1103/physreva.108.023512
S. M. Sadeghi, Dustin T. Roberts
{"title":"Impact of coherent coupling of plasmonic dipole modes in far-field scattering of templated metallic nanoislands","authors":"S. M. Sadeghi, Dustin T. Roberts","doi":"10.1103/physreva.108.023512","DOIUrl":"https://doi.org/10.1103/physreva.108.023512","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44266796","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
Vortex nucleation processes in rotating lattices of Bose-Einstein condensates ruled by the on-site phases 玻色-爱因斯坦凝聚体旋转晶格中的涡旋成核过程
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-16 DOI: 10.1103/physreva.108.023310
D. Jezek, P. Capuzzi
{"title":"Vortex nucleation processes in rotating lattices of Bose-Einstein condensates ruled by the on-site phases","authors":"D. Jezek, P. Capuzzi","doi":"10.1103/physreva.108.023310","DOIUrl":"https://doi.org/10.1103/physreva.108.023310","url":null,"abstract":"","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":"26 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41273490","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
Generation of two-giant-atom entanglement in waveguide-QED systems 波导- qed系统中双巨原子纠缠的产生
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-16 DOI: 10.1103/PhysRevA.108.023728
Xiangguo Yin, Jie-Qiao Liao
{"title":"Generation of two-giant-atom entanglement in waveguide-QED systems","authors":"Xiangguo Yin, Jie-Qiao Liao","doi":"10.1103/PhysRevA.108.023728","DOIUrl":"https://doi.org/10.1103/PhysRevA.108.023728","url":null,"abstract":"We study the generation of quantum entanglement between two giant atoms coupled to a one-dimensional waveguide. Since each giant atom interacts with the waveguide at two separate coupling points, there exist three different coupling configurations in the two-atom waveguide system: separated, braided, and nested couplings. Within the Wigner-Weisskopf framework for single coupling points, the quantum master equations governing the evolution of the two giant atoms are obtained. For each coupling configuration, the entanglement dynamics of the two giant atoms is studied, including the cases of two different atomic initial states: single- and double-excitation states. It is shown that the generated entanglement depends on the coupling configuration, phase shift, and atomic initial state. For the single-excitation initial state, there exists steady-state entanglement for these three couplings due to the appearance of the dark state. For the double-excitation initial state, an entanglement sudden birth is observed via adjusting the phase shift. In particular, the maximal entanglement for the nested coupling is about one order of magnitude larger than those of separate and braided couplings. In addition, the influence of the atomic frequency detuning on the entanglement generation is studied. This work can be utilized for the generation and control of atomic entanglement in quantum networks based on giant-atom waveguide-QED systems, which have wide potential applications in quantum information processing.","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45596608","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: 1
Solving and completing the Rabi-Stark model in the ultrastrong-coupling regime 超强耦合条件下Rabi-Stark模型的求解与完善
IF 2.9 2区 物理与天体物理
Physical Review a Pub Date : 2023-08-16 DOI: 10.1103/physreva.108.023720
Gen Li, Hao Zhu, Guorui Zhang
{"title":"Solving and completing the Rabi-Stark model in the ultrastrong-coupling regime","authors":"Gen Li, Hao Zhu, Guorui Zhang","doi":"10.1103/physreva.108.023720","DOIUrl":"https://doi.org/10.1103/physreva.108.023720","url":null,"abstract":"In this work,we employ a unitary transformation with a suitable parameter to convert the quantum Rabi-Stark model into a Jaynes-Cummings-like model. Subsequently, we derive the analytical energy spectra in the ultrastrong coupling regime. The energy spectra exhibit a phenomenon known as spectral collapse, indicating the instability of the model due to the unboundedness of its energy from below at higher coupling parameters. To stabilize the Rabi-Stark model, we introduce a nonlinear photon-photon interaction term. We then compare the modified model with the original model in the classical oscillator (CO) limit. Interestingly, we observe a regular\"staircase\"pattern in the mean photon number of the ground state. This pattern exhibits a fixed slope and equal step width, which we determine analytically. Moreover, we analytically determine the phase boundary, which slightly differs from that in the original Rabi-Stark model. These findings offer insights into the investigation of those superradiant phase transitions that are unbounded from below due to the phenomenon of spectral collapse.","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49297251","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
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