论文标题
通过中介增强量子设备之间的相干能量传递
Enhancing coherent energy transfer between quantum devices via a mediator
论文作者
论文摘要
我们研究了由量子总线介导的两个量子系统之间的相干能量转移。特别是，我们考虑两个量子位之间的能量传递过程，以及如何通过在谐振腔中使用第三量子量或光子作为介体来影响它。检查不同的功绩数字并考虑在异步配置上，我们表征了能量传递性能。我们表明，虽然Qubit介导的转移对直接耦合情况没有任何优势，但腔介导的转移逐渐越来越有效，这是作为量子总线中存储的光子数量的功能。由于量子调解人，能量传输时间的加速为量子技术和基于能量的量子逻辑的新建筑设计铺平了道路。
We investigate the coherent energy transfer between two quantum systems mediated by a quantum bus. In particular, we consider the energy transfer process between two qubits, and how it can be influenced by using a third qubit or photons in a resonant cavity as mediators. Inspecting different figures of merit and considering both on and off-resonance configurations, we characterize the energy transfer performances. We show that, while the qubit-mediated transfer shows no advantages with respect to a direct coupling case, the cavity-mediated one is progressively more and more efficient as function of the number of photons stored in the cavity that acts as a quantum bus. The speeding-up of the energy transfer time, due to a quantum mediator paves the way for new architecture designs in quantum technologies and energy based quantum logics.
