The decay of squeezed quantum fluctuations of a system coupled to a dissipative environment is discussed. For a model where the heat bath consists of an infinite set of harmonic oscillators, exact results for the time evolution of the mean-square fluctuations are obtained for arbitrary bath temperature and arbitrary damping strength.

• Received 21 May 1986

DOI:https://doi.org/10.1103/PhysRevA.34.4515