Reversible Decoherence of a Mesoscopic Superposition Driven by a Time-Dependent External Field

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（8）
• 页码范围: 1035-1037
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

By using the normal-ordering technique in the coherent state representation, we discuss the dynamical evolution of the coherence ofa Schrodinger cat state in a high Q cavity coupled to another resonator in the presence of external fields. During the progression of the coherence, we pay particular attention to the effect of the external fields, as well as to the initial phase of the Schrodinger cat state.