开放Dicke模型中耗散极限环的拓扑手性
Topological chirality of dissipative limit cycles in an open Dicke model
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中文总结 AI 辅助
该研究在开放Dicke模型中证明耗散可驱动两个手性相反的极限环相，并具有拓扑相图和手性连续时间晶体潜力，确立了耗散作为诱导手性动力学序的资源。
中文摘要 AI 辅助
在具有手性原子-腔耦合的开放、$U(1)$对称Dicke模型中，我们证明在热力学极限下耗散驱动两个手性相反的极限环相，并获得了精确解析解。这些相被一个$U(1)$破缺的超辐射态分隔，赋予相图拓扑特征，并且在$U(1)$保持扰动下持续存在，使其成为手性连续时间晶体的候选者。除了稳定的正常和反转稳态外，该模型还表现出多稳定性，其中长时间动力学由初始状态决定。我们的结果确立了耗散作为在光-物质耦合系统中诱导手性动力学序的资源。
英文摘要
In an open, $U(1)$-symmetric Dicke model with chiral atom-cavity couplings, we show that dissipation drives two limit-cycle phases of opposite chirality in the thermodynamic limit, obtaining exact analytical solutions. These phases are separated by a $U(1)$-broken superradiant state, lending the phase diagram a topological character, and persist under $U(1)$-preserving perturbations, making them candidates for chiral continuous time crystals. In addition to stable normal and inverted steady states, the model also exhibits multistability, where the long-time dynamics is set by the initial state. Our results establish dissipation as a resource for inducing chiral dynamical order in light-matter coupled systems.
发表机构
- University of Pittsburgh（匹兹堡大学）
- Purdue University（普渡大学）
- Harish-Chandra Research Institute（哈里什-昌德拉研究所）
- Homi Bhabha National Institute（霍米·巴巴国立研究所）
机构由 AI 辅助整理，请以论文原文为准。
