Example: Two-Level System

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Consider

$\displaystyle H = \left(\begin{array}{cc} 0 & T_c \\ T_c & 0 \\ \end{array}\right).$

(1.11)

We calculate the time-evolution operator $\bgroup\color{col1}$ U(t,t_0)\equiv e^{-i H (t-t_0)}$\egroup$ by two methods:

Tobias Brandes 2005-04-26