Quasi-Adiabatic Approximation for Slowly-Changing Quantum System and Berry's Phase Factors

  • By analyzing the symmetry of a quantum system in terms of the method of the group theory, a quasi-adiabatic approximate method for solving a Schrodinger equation is presented. The method is to study the transition problem of the quantum system with the Hamiltonian that changes slowly but finitely. As a result of zeroth-order approximate, the quantum adiabatic theorem for the degenerate case is proved strictly, and the topological Berry's phase factors are introduced. A geometrical interpretation of the violation in the adiabatic condition is given, and it is demonstrated that the Berry^ phase factors exist generally in the quantum processes with the time scale which is comparable with the pericxJ of the Hamiltonian. Finally, a possible observable effect is pointed out of the Berry's phase factor in a slowly changing process where the adiabatic condition is violated.
  • 加载中
  • 加载中

Get Citation
Sun Changpu. Quasi-Adiabatic Approximation for Slowly-Changing Quantum System and Berry's Phase Factors[J]. Chinese Physics C, 1988, 12(S3): 251-260.
Sun Changpu. Quasi-Adiabatic Approximation for Slowly-Changing Quantum System and Berry's Phase Factors[J]. Chinese Physics C, 1988, 12(S3): 251-260. shu
Milestone
Received: 1987-04-11
Article Metric

Article Views(330)
PDF Downloads(3)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Quasi-Adiabatic Approximation for Slowly-Changing Quantum System and Berry's Phase Factors

  • Northeast Normal University, Changchun

Abstract: By analyzing the symmetry of a quantum system in terms of the method of the group theory, a quasi-adiabatic approximate method for solving a Schrodinger equation is presented. The method is to study the transition problem of the quantum system with the Hamiltonian that changes slowly but finitely. As a result of zeroth-order approximate, the quantum adiabatic theorem for the degenerate case is proved strictly, and the topological Berry's phase factors are introduced. A geometrical interpretation of the violation in the adiabatic condition is given, and it is demonstrated that the Berry^ phase factors exist generally in the quantum processes with the time scale which is comparable with the pericxJ of the Hamiltonian. Finally, a possible observable effect is pointed out of the Berry's phase factor in a slowly changing process where the adiabatic condition is violated.

    HTML

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return