Physics – Quantum Physics
Scientific paper
2008-03-24
Phys. Rev. A 77, 062114 (2008)
Physics
Quantum Physics
5 pages, 1 figure
Scientific paper
10.1103/PhysRevA.77.062114
In this paper, we present a U(1)-invariant expansion theory of the adiabatic process. As its application, we propose and discuss new sufficient adiabatic approximation conditions. In the new conditions, we find a new invariant quantity referred as quantum geometric potential (QGP) contained in all time-dependent processes. Furthermore, we also give detailed discussion and analysis on the properties and effects of QGP.
Chen Jianlan
Wu Jian-da
Zhang Yongde
Zhao Mei-sheng
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