标题： 费米子长程序的耗散工程超越林德布洛德 显示英文标题

标题： Dissipation engineering of fermionic long-range order beyond Lindblad

摘要： 我们研究了在强相互作用费米系统中工程化耗散长程序的可能性，这种序对加热具有鲁棒性，这与腔量子电动力学中的原子有关。 先前的研究 [Tindall 等，Phys.Rev.Lett. 123, 030603 (2019)] 表明，通过利用 Lindblad 极限中的耗散机制，可以在 Hubbard 模型中稳定长程序，后者适用于光谱结构不明确的环境。 在这里，我们首先表明，当在模型中加入额外的自旋交换相互作用时，这一机制仍然有效，即对于 tUJ 模型。 此外，通过一种超越 Lindblad 情况的 Redfield 方法，我们展示了工程化状态的稳定性关键取决于环境光谱密度的性质，并讨论了这些性质在实验中的可行性。 显示英文摘要

摘要： We investigate the possibility of engineering dissipatively long-range order that is robust against heating in strongly interacting fermionic systems, relevant for atoms in cavity QED. It was previously shown [Tindall et al. Phys.Rev.Lett. 123, 030603 (2019)] that it is possible to stabilize long-range order in a Hubbard model by exploiting a dissipative mechanism in the Lindblad limit, this latter being valid for spectrally unstructured baths. Here, we first show that this mechanism still holds when including additional spin-exchange interactions in the model, that is for the tUJ model. Moreover, by means of a Redfield approach that goes beyond the Lindblad case, we show how the stability of the engineered state depends crucially on properties of the bath spectral density and discuss the feasibility of those properties in an experiment.