Decoherence without dissipation.
That decoherence can take place in the presence of energy conservation seems to be a poorly known fact. That lack of knowledge has, for example, bedevilled the discussion of the 'black hole information' problem. I present a simple model that illustrates such energy-free decoherence.
CIfAR Cosmology and Gravity Program, Department of Physics, University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada. unruh@physics.ubc.ca
W G
WG
Unruh