论文标题
混合超导型腔体微观旋转系统的凝结与有限孔宽度驱动器
Condensation in hybrid superconducting cavity-microscopic spins systems with finite-bandwidth drive
论文作者
论文摘要
使用Keldysh场理论，我们在直接有限的带宽不一致的空腔驱动器下找到了开放的Tavis-Cummings模型中非平衡冷凝的条件。在实验上，我们预计凝结过渡可以轻松访问与微观旋转以及许多其他不连贯驱动的轻质系统的混合超导系统。在我们的理论分析中，我们将驱动器的光谱分布明确地纳入鞍点描述中。我们表明，注入的不相干光子在自旋-1/2颗粒之间产生驱动依赖性的有效耦合。凝结过渡是在我们现在可以准确预测的关键驾驶状态下产生的。我们的结果还为未来的量子模拟实验提供了重要的准则，这些量子模拟实验与混合设备的非平衡相。
Using Keldysh field theory, we find conditions for non-equilibrium condensation in the open Tavis-Cummings model under a direct finite-bandwidth incoherent cavity drive. Experimentally, we expect the condensation transition to be easily accessible to hybrid superconducting systems coupled to microscopic spins, as well as to many other incoherently driven light-matter systems. In our theoretical analysis, we explicitly incorporate the drive's spectral distribution into the saddle-point description. We show that the injected incoherent photons create a drive-dependent effective coupling between spin-1/2 particles. The condensation transition arises at a critical regime of driving which we can now accurately predict. Our results also provide important guidelines for future quantum simulation experiments of non-equilibrium phases with hybrid devices.
