Unified Theory of Dynamically Suppressed Qubit Decoherence in Thermal Baths 论文

详细信息

发表期刊/会议

Physical Review Letters

发表日期

2004-09-22

发表年份

2004

摘要

We develop a unified theory of dynamically suppressed decay and decoherence by external fields in qubits coupled to arbitrary thermal baths and dephasing sources. This general theory does not invoke the rotating-wave approximation, which fails for ultrafast field-induced modulations of qubit-bath coupling. Considerations for optimizing the dynamical suppression are outlined.