We investigate a two-qubit open Rabi model, focusing on local ergotropy--the maximum extractable work by acting solely on the two qubits--within a parameter regime where a Berezinskii-Kosterlitz-Thouless dissipative phase transition occurs. First, we aim to define a protocol for charging, storing, and discharging the two-qubit system, interpreted as the working principle of an open quantum battery. Second, we examine the impact of the phase transition on ergotropy and identify potential markers. To achieve these goals, we construct an ad-hoc charging unitary operator, leveraging our knowledge of the ground state near the transition to bring it into a decoherence-free state during storage. Using state-of-the-art numerics based on matrix product state representation, we reveal that high couplings to an external bath approximately double the local ergotropy immediately post-charging. Over time we observe oscillatory behaviors in ergotropy and its fluctuations, which undergo significant changes near the transition, signaling its occurrence. Furthermore, we optimize local ergotropy over time using a physically inspired ansatz, enabling work extraction at a generic time (local ergotropy never reaches zero). Our work proposes a tunable, experimentally realizable protocol for work extraction, leveraging decoherence-free states and phase transitions. Additionally, it sheds light on the complex interaction between local ergotropy and quantum phase transitions.
Dissipative Quantum Battery in the Ultrastrong Coupling Regime Between Two Oscillators
Henan Normal University（河南师范大学）；Dalian University of Technology（大连理工大学）；Shangrao Normal University（上饶师范学院）；Hunan Normal University（湖南师范大学）；Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所）
Charging Quantum Batteries via Dissipative Quenches
Università di Genova（热那亚大学）；CNR-SPIN（意大利国家研究委员会自旋物理学研究所）；Università degli Studi di Napoli Federico II（那不勒斯费德里科二世大学）；Istituto Nazionale di Fisica Nucleare, Sezione di Napoli（意大利国家核物理研究所，那不勒斯分部）
Entanglement-enhanced fluctuation-free daemonic ergotropy with random measurements
TCG CREST；Seoul National University（首尔大学）；Okinawa Institute of Science and Technology Graduate University（冲绳科学技术大学院大学）；Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute（哈里斯-钱德拉研究所，霍米·巴巴国立学院成员机构）；Slovak Academy of Sciences（斯洛伐克科学院）
Coherent catalyst induced stabilization of ergotropy in open quantum batteries
Center for Quantum Materials and Computational Condensed Matter Physics, Faculty of Science, Kunming University of Science and Technology（昆明理工大学理学院量子材料与计算凝聚态物理中心）
Parity-selected charging and noise-correlated work retention in a coupled Si/SiGe double quantum dot battery: theory and experimentally parameterized modeling
Catalytic Stabilization of Ergotropy and Backflow Suppression in Open Many-Body Quantum Batteries
Center for Quantum Materials and Computational Condensed Matter Physics, Faculty of Science, Kunming University of Science and Technology（昆明理工大学理学院量子材料与计算凝聚态物理中心）
Impact of thermal and dissipative effects in a periodically-kicked quantum battery
Instituto de Ciencia de Materiales de Madrid ICMM-CSIC（马德里材料科学研究所）；Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid（马德里自治大学凝聚态物理理论系）
Optimal control of a dissipative micromaser quantum battery in the ultrastrong coupling regime
Università degli Studi dell’Insubria（因苏布里亚大学）；INFN, Sezione di Milano（意大利国家核物理研究所米兰分部）；Università di Pavia（帕维亚大学）；INFN, Sezione di Pavia（意大利国家核物理研究所帕维亚分部）；Università di Catania（卡塔尼亚大学）；INFN, Sezione di Catania（意大利国家核物理研究所卡塔尼亚分部）
Experimental test of fluctuation relations for driven open quantum systems with an NV center
由于区分功和热在概念上和操作上的困难，受驱动的开放量子系统的量子涨落关系的实验验证目前是一个挑战。金刚石中的氮空位中心最近被提议作为一个受控的测试床，以研究在没有工作的情况下，在工程耗散通道存在下的波动关系[Hernán-Gómez等人，Phys. Rev. Research 2，023327（2020）]。在这里，我们将这些研究扩展到探索驱动耗散场景中量子涨落关系的有效性，其中自旋由于热梯度而与周围环境交换能量，并与外部工作源交换能量。我们实验证明的有效性的量子涨落关系中存在的循环驱动在两种情况下，当自旋交换能量与一个有效的无限温度的水库，当总工作消失在频闪时间-虽然提供给NV中心的功率是非零的。我们的结果代表了第一个实验研究的量子涨落关系的驱动开放量子系统。
Fluctuation-Induced Bistability in the Dissipative Dynamics of Generic Cavity-Matter Quantum Systems
Univ. Grenoble Alpes, CEA, Grenoble INP, IRIG, Pheliqs（格勒诺布尔阿尔卑斯大学）；Physikalisches Institut, University of Bonn（波恩大学物理研究所）；Max Planck Institute for the Physics of Complex Systems（马克斯·普朗克复杂系统物理研究所）
