Gravitational decoherence is a term for hypothetical mechanisms by which gravitation can act on quantum mechanical systems to produce decoherence.
Advocates of gravitational decoherence include Frigyes Károlyházy, Roger Penrose and Lajos Diósi.
[1][2] A number of experiments have been proposed to test the gravitational decoherence hypothesis.
[1][3][4] Dmitriy Podolskiy and Robert Lanza have argued that gravitational decoherence may explain the existence of the arrow of time.
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