Path Integrals and Their Application to Dissipative Quantum Systems
  Introduction   Path Integrals   - Introduction   - Propagator   - Free Particle   - Path Integral Representation of Quantum Mechanics   - Particle on a Ring   - Particle in a Box   - Driven Harmonic Oscillator   - Semiclassical Approximation   - Imaginary Time Path Integral   Dissipative Systems   - Introduction   - Environment as Collection of Harmonic Oscillators   - Effective Action   Damped Harmonic Oscillator   - Partition Function   - Ground State Energy and Density of States   - Position Autocorrelation Function 
Gert-Ludwig Ingold