13.5: Quantum Linear Response Theory
- Page ID
- 5209
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Consider again the Hamiltonian for a system coupled to a time-dependent field
\[H = H_0 - BF_e(t) \nonumber \]
We wish to solve the quantum Liouville equation
\[i\hbar {\partial \rho \over \partial t} = [H,\rho] \nonumber \]
in the linear regime where \(F_e(t)\) is small.