Static and dynamic susceptibility; thermodynamic sum rule (section 2.4.3)
Response function for the damped harmonic oscillator in the presence of an external force: properties of the poles (section 2.4.3)Static and dynamic susceptibility; thermodynamic sum rule (section 2.4.3)
Response function for the damped harmonic oscillator in the presence of an external force: properties of the poles (section 2.4.3)