Physical Review A最新文献

Spectroscopy of quantum phase slips: Visualizing complex real-time instantons 量子相滑移的光谱学：可视化复杂的实时瞬间

2区物理与天体物理

Physical Review A Pub Date : 2026-03-16 DOI: 10.1103/bkyx-wwv1

Foster Thompson, Daniel K. J. Boneß, Mark Dykman, Alex Kamenev

引用次数: 0

High-harmonic generation from two weakly coupled molecules: A simple tight-binding model 两个弱耦合分子产生高谐波：一个简单的紧密结合模型

2区物理与天体物理

Physical Review A Pub Date : 2026-03-11 DOI: 10.1103/7ljs-sbpy

Lina Bielke, Samuel Schöpa, Falk-Erik Wiechmann, Franziska Fennel, D. Bauer

{"title":"High-harmonic generation from two weakly coupled molecules: A simple tight-binding model","authors":"Lina Bielke, Samuel Schöpa, Falk-Erik Wiechmann, Franziska Fennel, D. Bauer","doi":"10.1103/7ljs-sbpy","DOIUrl":"https://doi.org/10.1103/7ljs-sbpy","url":null,"abstract":"The generation of high harmonics is a strongly nonlinear effect that allows to probe properties of the target and to study electron dynamics in matter. It has been investigated in many different kinds of targets, including molecular gases, liquids and solids. Recently, high-harmonic generation was studied in organic molecular crystals by Wiechmann et al. [Nat. Commun. 16, 9890 (2025)]. It was found that the laser-polarization-dependent harmonic yield is sensitive to the weak couplings between nearest- and next-nearest-neighbor molecules. In this paper, the impact of the laser polarization angle and the intermolecular interaction on the harmonic yield is examined in detail using a simple but insightful two-dimensional tight-binding system that models a molecular dimer, i.e. two weakly coupled molecules. We find that the intensities of lower harmonic orders tend to maximize for a laser polarization direction aligning with the molecular axes, whereas higher harmonic orders rather show the strongest yield for a polarization direction along the intermolecular axis. We further demonstrate that the harmonic order at which the maximum flips from the molecular to the intermolecular direction strongly depends on the intermolecular coupling strength. To gain a deeper insight into the origins of the findings, we include a detailed adiabatic analysis, showing that the flipping of the maximum yield towards the intermolecular direction is already contained qualitatively in the adiabatically following states.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"113 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://arxiv.org/pdf/2512.02623","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147919405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Noise-canceling quantum feedback: Non-Hermitian dynamics with applications to state preparation and magic state distillation 消噪量子反馈：非厄米动力学与状态制备和神奇状态蒸馏的应用

2区物理与天体物理

Physical Review A Pub Date : 2026-01-28 DOI: 10.1103/cnxj-m1wn

Anonymous, Philippe Lewalle, Yipei Zhang, K. Birgitta Whaley

引用次数: 0

Scalable native multiqubit gates via engineered noncomputational-state interactions in superconducting fluxonium qubits 可扩展的原生多量子位门通过工程的非计算态相互作用在超导氟态量子位

2区物理与天体物理

Physical Review A Pub Date : 2026-01-22 DOI: 10.1103/xwny-vkft

Peng Zhao, Peng Xu, Zheng-Yuan Xue

引用次数: 1

Chiral optomechanically induced Faraday effect with synthetic magnetism 合成磁性手性光机械诱导法拉第效应

2区物理与天体物理

Physical Review A Pub Date : 2025-11-26 DOI: 10.1103/flsh-wf4l

Hu-Sen Piao, Liang Wang, Tie Wang, Xuan Wu, Xue Han, Shou Zhang, Hong-Fu Wang

引用次数: 0

Simultaneous control of populations and coherence phase of open two-level quantum systems with a single pulse 单脉冲开放二能级量子系统居群和相干相位的同时控制

2区物理与天体物理

Physical Review A Pub Date : 2025-11-24 DOI: 10.1103/x2g9-wpk6

Gustavo Fernandes da Costa, Emanuel F. de Lima

引用次数: 0

Cavity-optomechanical probe of gravity between massive mechanical oscillators 大质量机械振子间的重力腔光机械探针

2区物理与天体物理

Physical Review A Pub Date : 2025-11-21 DOI: 10.1103/m2zy-3ywx

Ziqian Tang, Wenlong Li, Huanying Sun, Xiaoxia Cai, Tiefu Li, Yulong Liu

{"title":"Cavity-optomechanical probe of gravity between massive mechanical oscillators","authors":"Ziqian Tang, Wenlong Li, Huanying Sun, Xiaoxia Cai, Tiefu Li, Yulong Liu","doi":"10.1103/m2zy-3ywx","DOIUrl":"https://doi.org/10.1103/m2zy-3ywx","url":null,"abstract":"Exploring gravitational interactions between objects with small masses has become increasingly timely. Concurrently, oscillators with masses ranging between milligrams and grams in cavity optomechanical systems sparked interest for probing gravity and even investigating gravity-induced decoherence within massive mechanical systems. Here we present a measurement scheme for probing gravity in a microwave optomechanical setup that incorporates periodic gravitational modulation between the test mass and the driven source mass at the milligram scale. Optomechanically induced transparency (OMIT) can be utilized to sense the gravitational interactions between test masses and source masses. Specifically, the relative variation in the height of the OMIT peak, expressed as $|1+r{e}^{iensuremath{phi}}{|}^{2}ensuremath{-}1$, where $r$ represents the ratio of the amplitude of the gravitational driving force to the radiation pressure force of the probe tone and $ensuremath{phi}$ denotes their phase difference, can reach up to 2.3% under plausible experimental conditions. This work may facilitate cavity-optomechanical probing of gravitational coupling between milligram-scale mechanical oscillators, a mass regime where modifications to gravity, evidence for extra dimensions, or gravity-induced entanglement may emerge.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"112 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://arxiv.org/pdf/2506.13398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Non-Markovian-environment-induced chaos in an optomechanical system 光力学系统中的非马尔可夫环境混沌

2区物理与天体物理

Physical Review A Pub Date : 2025-11-19 DOI: 10.1103/knfq-17nw

You-Lin Xiang, Xinyu Zhao, Yan Xia

引用次数: 3

Non-Markovian dynamics of a driven three-level giant atom coupled to a semi-infinite waveguide via complex couplings 驱动三能级巨原子通过复杂耦合耦合到半无限波导的非马尔可夫动力学

2区物理与天体物理

Physical Review A Pub Date : 2025-11-10 DOI: 10.1103/yqvq-4h1d

Shengjun Sun, Z. Y. Li, Chunzhi Cui, Shuang Xu, H. Z. Shen

{"title":"Non-Markovian dynamics of a driven three-level giant atom coupled to a semi-infinite waveguide via complex couplings","authors":"Shengjun Sun, Z. Y. Li, Chunzhi Cui, Shuang Xu, H. Z. Shen","doi":"10.1103/yqvq-4h1d","DOIUrl":"https://doi.org/10.1103/yqvq-4h1d","url":null,"abstract":"The non-Markovian effects of open quantum systems subjected to external environments are deemed to be valuable resources in quantum optics and quantum information processing. In this work, we construct the model Hamiltonian of three-level giant atom with multiple coupling points in the semi-infinite photonic waveguide via complex coupling coefficients and investigate the non-Markovian dynamics of the three-level giant atom driven by a classical laser field. In the non-Markovian regime, the traveling time of a photon between different coupling points is sufficiently large compared to the inverse of the bare relaxation rate of the giant atom. We derive the analytical expressions for the probability amplitudes of the driven three-level giant atom by solving a set of delay differential equations and obtain two independent conditions of bound states' formation that can inhibit the dissipation. We find two different types of bound states (including the static bound states and the periodic equal-amplitude oscillating bound states) and discuss the physical origins of the bound states' formation. Moreover, we discuss the case of the driven three-level giant atom interacting with the infinite photonic waveguide, where there is only one purely imaginary solution (i.e., only one bound-state condition exists) for its complex frequency (coming from the absence of mirror at one end of the waveguide) compared to that of a driven three-level giant atom coupling with a semi-infinite photonic waveguide. With this, we also find two different types of bound states, including the static bound state and the periodic equal-amplitude oscillating bound states. We study the influences of the phase in the coupling strength on the bound states in semi-infinite and infinite photonic waveguides. The presented protocol might open a way to better understand exactly the non-Markovian dynamics of driven multilevel giant atoms interacting with semi-infinite (or infinite) photonic waveguides.","PeriodicalId":20146,"journal":{"name":"Physical Review A","volume":"112 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892488","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: 4

Anomalous-dispersion phase matching in a hypergap crystal 超隙晶体中的反常色散相匹配

2区物理与天体物理

Physical Review A Pub Date : 2025-10-09 DOI: 10.1103/hnf1-vj2r

Kun Chen, Xiaolei Hu, Zhengran Wu, Xiang Guo, Zhilin Li, Ling Lü

引用次数: 0