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论文类型： 期刊论文

发表时间： 2012-10-12

发表刊物： JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL

收录刊物： SCIE、Scopus

卷号： 45

期号： 40

ISSN号： 1751-8113

摘要： With time-dependent Lindblad operators, an open system may have a time-dependent decoherence-free subspace (t-DFS). In this paper, we define the t-DFS and present a necessary and sufficient condition for the t-DFS. Two examples are presented to illustrate the t-DFS, which show that this t-DFS is not trivial, when the dimension of the t-DFS varies.