The Extention of Berry's Theory on Geometric Phase
- Received Date: 1998-04-28
- Accepted Date: 1900-01-01
- Available Online: 1999-10-05
Abstract: To the cyclic Hamiltonian system, where we have done the parameter transition t→R(t), we study the problem of the acquirement of Berry geometric phase γn (C) by the "strict" evolution from the non-adiabatic to the adiabatic-limit. Our results show that there exist four types of evolution states, all of which can satisfy the above "strict" evolution along the same closed curve C in the space formed by the parameter R and can obtain the same Berry geometric phase γn(C). When Berry first found the geometric phase γn(C), he only considered one evolution state, which is just the adiabatic approximation case of one of the four "strict" evolution states mentioned above. So Berry's theory on geometric phase can be extended into the four types of strict evolution shown in this paper.