Quantum coherence is a crucial prerequisite for quantum technologies. Therefore, the robust generation, as autonomous as possible, of quantum coherence remains the essential problem for developing this field. We consider a method of synthesizing and multiplexing quantum coherence from spin systems without any direct drives only coupled to bosonic baths. The previous studies in this field have demonstrated that a back-action of the bath to the spin subsystem is important to generate it, however, it simultaneously gives significant limits to the generated coherence. We propose a viable approach with the bosonic bath that allows overcoming these limits by avoiding the destructive effect of the back-action processes. Using this approach, we suggest an advanced synthesis of the quantum coherence non-perturbatively in the spin-boson coupling parameters of multiple bosonic baths to increase and multiplex it for upcoming proof-of-principle experiments.

中文翻译：

---

合成和复用自主量子相干性


量子相干性是量子技术的重要先决条件。因此，尽可能自主地稳健生成量子相干性仍然是发展该领域的基本问题。我们考虑一种从自旋系统合成和复用量子相干性的方法，无需任何直接驱动，仅与玻色浴耦合。该领域的先前研究已经证明，浴对自旋子系统的反作用对于产生它很重要，然而，它同时对产生的相干性给出了显着的限制。我们提出了一种可行的玻色子浴方法，可以通过避免反作用过程的破坏性影响来克服这些限制。使用这种方法，我们建议在多个玻色子浴的自旋玻色子耦合参数中非扰动地高级合成量子相干性，以增加和复用它以用于即将进行的原理验证实验。