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题名: EVOLUTION OPERATOR IN 2-LEVEL SYSTEMS
作者: ZHAO, XG
刊名: PHYSICS LETTERS A
出版日期: 1993
卷号: 181, 期号:6, 页码:425-431
关键词: NEUTRINO SPIN PRECESSION ;  QUANTUM DYNAMICS ;  2-STATE SYSTEM ;  PHASE ;  DISSIPATION ;  INTERFEROMETRY ;  APPROXIMATION ;  MODEL ;  ATOM ;  TIME
学科分类: Physics
通讯作者: ZHAO, XG , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: By means of the Lie algebra SU(2), the investigation of the evolution behavior of two-level systems described by arbitrary time-dependent Hamiltonians is transformed into the study of a first-order differential equation. A general closed-form solution of the time-evolution operator is obtained, from which the results for any special case can be derived. This is illustrated by several simple examples, all of which may be useful for future studies on a variety of fields in quantum physics.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/11990
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
ZHAO, XG. EVOLUTION OPERATOR IN 2-LEVEL SYSTEMS[J]. PHYSICS LETTERS A,1993,181(6):425-431.
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