Environmental gravitational decoherence and a tensor noise model

[摘要] We discuss decrease of coherence in a massive system due to the emission of gravitational waves. In particular we investigate environmental gravitational decoherence in the context of an interference experiment. The time-evolution of the reduced density matrix is solved analytically using the path-integral formalism. Furthermore, we study the impact of a tensor noise onto the coherence properties of massive systems. We discuss that a particular choice of tensor noise shows similarities to a mechanism proposed by Diósiand Penrose.

[发布机构] Department of Physics, University of British Columbia, Vancouver; BC; V6T 1Z1, Canada^1

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] Coherence properties;Decoherence;Massive systems;Noise modeling;Path integral;Reduced-density matrix;Time evolutions