摘要
量子体系在演化过程中,其状态的时间演化因子除众所周知的由系统能谱决定的动力学相位因子外,还会出现与系统演化路径有关的几何相位因子即Berry相位因子。几何相位的存在已为大量实验所证实,在理论上,已确定了其数学基础是纤维丛理论,并发现它与规范场有某些联系。本文评述了有关几何相位研究工作的进展。
A quantum system in evolution will gain two phase factors: one is the well known dynamic phase factor determined by the energy eigenvalues of the system and the other is the geometric or Berry's phase factor that depends upon the geometric structure of the path the system evolves with The existence of the geometric phase has been proved recently by many experiments, while theoretically it has been demonstrated by fiber bundle and being related to a gauge field. A review extensively concerned with the research on the geometric phase is presented in the paper.
出处
《物理学进展》
CSCD
北大核心
1992年第1期63-82,共20页
Progress In Physics
