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Article overview
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General Relativistic Decoherence with Applications to Dark Matter Phenomenology | | Itamar J. Allali
; Mark P. Hertzberg
; | | Date: |
29 Mar 2021 | | Abstract: | Quantum mechanics allows for states in macroscopic superpositions, but they
ordinarily undergo rapid decoherence due to interactions with their
environment. A system that only interacts gravitationally, such as an
arrangement of dark matter (DM), may exhibit slow decoherence. In this letter,
we compute the decoherence rate of a quantum object in general relativity. For
axion DM in a superposition of the field’s phase, we find that DM in the Milky
Way is robust against decoherence, while a spatial superposition is not. This
novel phase behavior may be relevant to direct detection experiments. | | Source: | arXiv, 2103.15892 | | Services: | Forum | Review | PDF | Favorites | |
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