期刊
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
卷 43, 期 42, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1751-8113/43/42/425001
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [20115009, 21740283]
- MEXT
- Grants-in-Aid for Scientific Research [21740283] Funding Source: KAKEN
We propose a general framework of the geometric-phase interpretation for counting statistics. Counting statistics is a scheme to count the number of specific transitions in a stochastic process. The cumulant generating function for the counting statistics can be interpreted as a 'phase', and it is generally divided into two parts: the dynamical phase and a remaining one. It has already been shown that for cyclic evolution the remaining phase corresponds to a geometric phase, such as the Berry phase or Aharonov-Anandan phase. We here show that the remaining phase has also an interpretation as a geometric phase even in noncyclic and nonadiabatic evolution.
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