实现纯稳态反馈哈密顿量的参数化
Parametrization of the feedback Hamiltonian realizing a pure steady state
摘要：
反馈控制有望在很大程度上保护量子态不受系统与环境相互作用引起的退相干的影响。特别是Wiseman提出的马尔可夫反馈方案可以修正退相干的性质，最终恢复相应主方程定态的纯净性。本文给出了修正主方程具有纯定态的条件。通过将这个条件应用到两量子比特系统，我们得到了反馈哈密顿量的完全参数化，使得稳态成为最大纠缠态。
英文摘要：
Feedback control is expected to considerably protect quantum states against decoherence caused by interaction between the system and environment. Especially, Markovian feedback scheme developed by Wiseman can modify the properties of decoherence and eventually recover the purity of the steadystate of the corresponding master equation. This paper provides a condition for which the modified master equation has a pure steady state. By applying this condition to a two-qubit system, we obtain a complete parametrization of the feedback Hamiltonian such that the steady state becomes a maximally entangled state.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
