Self gravity affects quantum states
- URL: http://arxiv.org/abs/2006.11768v4
- Date: Mon, 14 Dec 2020 10:17:21 GMT
- Title: Self gravity affects quantum states
- Authors: David Edward Bruschi and Frank K. Wilhelm
- Abstract summary: We study how self gravitation of quantum systems affects the quantum coherence present in their state.
The ratio of the characteristic size of the system and its Compton length determines the onset of the effects.
Our results can explain two important aspects of physical systems: the possibility of coherently placing individual particles or photons in distant positions, and the difficulty of maintaining quantum coherence between massive objects.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study how self gravitation of quantum systems affects the quantum
coherence present in their state. Spatial superpositions of static, large,
heavy systems tend to rapidly lose coherence, whereas light or massless
particles are unaffected. Furthermore, large and heavy objects also rapidly
localize into a single classical position. The ratio of the characteristic size
of the system and its Compton length determines the onset of the effects, which
become significant at a timescale that is inversely proportional to the
system's gravitational self energy. Our results can explain two important
aspects of physical systems: the possibility of coherently placing individual
particles or photons in distant positions, and the difficulty of maintaining
quantum coherence between massive objects.
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