摘要
Based on the quantum invariant theory,the quantum phases,including the total phase as well as its dynamical and geometric parts,of Pancharatnam type are derived for a general spin in a time-dependent magnetic field,without the constraint of adiabatic,cyclic or unitary condition.The geometric meaning of geometric phase is expounded.
作者
ZHAO Yue-gang
LI Bo-zang
赵月刚;李伯臧(Department of Physics,Peking University,Beijing 100871;Institute of Physics&Center for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100080)
基金
Supported by the National Natural Science Foundation of China under Grant No.19677101
