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Cosmological Constant: A Lesson from Bose-Einstein Condensates · Around

2011

Cosmological Constant: A Lesson from Bose-Einstein Condensates

Finazzi, Stefano, Liberati, Stefano, Sindoni, Lorenzo

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The cosmological constant is one of the most pressing problems in modern physics.

We address this issue from an emergent gravity standpoint, by using an analogue gravity model.
Indeed, the dynamics of the emergent metric in a Bose-Einstein condensate can be described by a Poisson-like equation with a vacuum source term reminiscent of a cosmological constant.
The direct computation of this term shows that in emergent gravity scenarios this constant may be naturally much smaller than the naive ground-state energy of the emergent effective field theory.

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Then

S. H. S. Alexander and G. Calcagni, Found. Phys. 38
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Later among the works it cites.
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2011
Closest in time.
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Original
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