Physics – Quantum Physics
Scientific paper
2004-06-22
Phys. Lett. A 339(2005)288
Physics
Quantum Physics
11 pages, no figure, modified and Journal-ref added
Scientific paper
10.1016/j.physleta.2005.03.043
The adiabatic theorem shows that the instantaneous eigenstate is a good approximation of the exact solution for a quantum system in adiabatic evolution. One may therefore expect that the geometric phase calculated by using the eigenstate should be also a good approximation of exact geometric phase. However, we find that the former phase may differ appreciably from the latter if the evolution time is large enough.
Kwek Leong Chuan
Oh Chang-Heon
Singh Kesar
Tong Dian-Min
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