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Modified uncertainty principle from the free expansion of a Bose-Einstein Condensate

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arxiv 1507.00331 v3 pith:5HRIFUA7 submitted 2015-07-01 gr-qc

Modified uncertainty principle from the free expansion of a Bose-Einstein Condensate

classification gr-qc
keywords condensateexpansionfreebose-einsteinmodifiedpossibleprincipleuncertainty
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In this paper, we present a theoretical and numerical analysis of the free expansion of a Bose-Einstein condensate, where we assume that the single particle energy spectrum is deformed due to a possible quantum structure of spacetime. Also, we consider the presence of interparticle interactions in order to study more realistic and specific scenarios. The modified free velocity expansion of the condensate leads in a natural way to a modification of the uncertainty principle, which allows us to investigate some possible features of the Planck scale regime in low-energy earth-based experiments.

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