Model (20 min)

Next: Eigenvalues of the energy, Up: The Two-Level System I Previous: The Two-Level System I Contents

Repeat the steps that lead to the form

$\begin{displaymath}\hat{H}=\left( \begin{array}{cc} \varepsilon_L & T\\ T* & \varepsilon_R \end{array}\right)\end{displaymath}$

(29)

of the Hamiltonian of the two-level system, see Fig. 3.1.

**Figure:** Vector representation of left and right lowest states of double well potential.
$\begin{figure}\unitlength1cm \begin{picture}(12,5) \epsfxsize =6cm \put(0.0,0.5)... ...} \epsfxsize =6cm \put(6.5,0.5){\epsfbox{dwell3b.eps}} \end{picture}\end{figure}$

Explain the terms appearing in the two-by-two matrix $\hat{H}$ .

Tobias Brandes 2004-02-04