论文标题
消散辅助量子驾驶
Decoherence-assisted quantum driving
论文作者
论文摘要
我们建议使用与外部观众系统的重复测量样相互作用，以在其参数空间中无限量子系统的过渡驾驶方案。由于量子zeno效应，最终状态制备的保真度等于无限速率相互作用的极限。对于有限速率相互作用，对于具有最小的几何长度的驾驶轨迹实现了最大的保真度，并且在参数空间中相对于教务长 - vallee指标保持恒定速度。我们在数字上测试了交互的多Qubit系统中的协议，证明了其在相干驾驶方法上的优势。
We propose a protocol for transitionless driving of a bound quantum system in its parameter space using repeated measurement-like interactions with an external spectator system. As a consequence of the quantum Zeno effect, the fidelity of the final state preparation is equal to unity in the limit of infinite-rate interactions. For finite-rate interactions, the maximal fidelity is achieved for the driving trajectory having a minimal geometric length and keeping a constant speed with respect to the Provost-Vallee metric in the parameter space. We numerically test the protocol in an interacting multiqubit system, demonstrating its dominance over the method of coherent driving.
