Damped Oscillators within the General Theory of Casimir and van der Waals Forces

It is demonstrated that the general theory of Casimir and van der Waals forces describes interaction-induced equilibrium thermodynamic potentials damped harmonic oscillator bilinearly coupled to environment. An extended model for a suggested along lines forces, corresponding quantities obtained. While original involves heat bath consisting large number free oscillators having infinitesimal damping functions, allows any generally admissible frequency temperature dependent dissipative susceptibilities constituents, influenced by additional environmental channels are not directly linked system oscillator. Consequently, results obtained applicable function