Gorin T, Kohler H, Prosen T, Seligman T H, Stöckmann H-J, Znidaric M
Max-Planck-Institut für Physik komplexer Systeme, D-01187 Dresden, Germany.
Phys Rev Lett. 2006 Jun 23;96(24):244105. doi: 10.1103/PhysRevLett.96.244105.
Symmetries as well as other special conditions can cause anomalous slowing down of fidelity decay. These situations will be characterized, and a family of random matrix models to emulate them generically presented. An analytic solution based on exponentiated linear response will be given. For one representative case the exact solution is obtained from a supersymmetric calculation. The results agree well with dynamical calculations for a kicked top.
对称性以及其他特殊条件会导致保真度衰减异常减缓。将对这些情况进行特征描述，并一般性地给出一族用于模拟它们的随机矩阵模型。将给出基于指数线性响应的解析解。对于一个代表性案例，精确解是通过超对称计算得到的。结果与受踢陀螺的动力学计算结果吻合得很好。
