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： 我们研究在强相互作用费米系统中，通过耗散机制实现对加热具有鲁棒性的长程有序的可能性，这与腔量子电动力学中的原子相关。 此前已表明[Tindall等，Phys.Rev.Lett. 123, 030603 (2019)]，通过利用林德布拉德极限中的耗散机制，可以在哈伯德模型中稳定长程有序，后者适用于光谱结构无特性的环境。 在此，我们首先表明，当在模型中包括额外的自旋交换相互作用时，这种机制仍然有效，即对于tUJ模型。 此外，通过一种超越林德布拉德情况的红菲尔德方法，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特性，并讨论了这些特性在实验中的可行性。 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.