arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2607.21360quant-ph

用于远程逻辑纠缠的弗洛凯量子存储工程

Floquet Reservoir Engineering for Remote Logical Entanglement

Mingxing Yao, Aashish A. Clerk

AI总结:

研究如何通过超越标准设置实现更强大的非酉协议来稳定逻辑量子比特远程纠缠,引入耗散弗洛凯协议,利用现有实验能力克服时间纠缠限制,实现自主纠缠蒸馏并增强对波导损耗的保护。

AI中文摘要:

实现受控耗散动力学是在包括制备远程纠缠态在内的各种情况下进行态制备的有力方法。本文表明,超越与时间无关的耗散动力学的标准设置,可实现更强大的非酉协议。我们引入了用于稳定逻辑量子比特远程纠缠的耗散弗洛凯协议,其中连续运行的耗散与酉门的周期性序列交错。这些协议利用现有实验能力,克服了限制标准方法的时间纠缠限制,还实现了一种自主形式的纠缠蒸馏。我们展示了这些协议如何增强对波导损耗的保护,并以超导电路中使用猫态量子比特和跨导量子比特的具体实现为例进行了分析。

英文摘要:

Implementing controlled dissipative dynamics is a powerful approach for state preparation in a variety of contexts, including the preparation of remote entangled states. Here, we show that by going beyond the standard setting of time-independent dissipative dynamics, one can realize even more powerful non-unitary protocols. We introduce dissipative Floquet protocols for stabilizing remote entanglement of logical qubits, where continuously-running dissipation is interleaved with a periodic sequence of unitary gates. These protocols harness existing experimental capabilities, and overcome time-entanglement limits that constrain standard approaches. They also implement an autonomous form of entanglement distillation. We show how these protocols give enhanced protection against waveguide loss, and as an example, analyze a specific implementation using cat-qubits and transmons in a superconducting circuit.

补充信息

↑