Environmental gravitational decoherence and a tensor noise model

7th International Workshop DICE2014 Spacetime – Matter – Quantum Mechanics

物理学;力学

Suzuki, Fumika^1 ; Queisser, Friedemann^1

Department of Physics, University of British Columbia, Vancouver

BC

V6T 1Z1, Canada^1

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

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/626/1/012039/pdf
DOI  :  10.1088/1742-6596/626/1/012039

学科分类：力学，机械学

来源: IOP

【 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.