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Polymer Bose-Einstein condensates
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DOI：10.1016/j.physletb.2013.04.009.png)
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In this work we analyze a non-interacting one-dimensional polymer Bose-Einstein condensate in a harmonic trap within the semiclassical approximation. We use an effective Hamiltonian coming from the polymer quantization that arises in loop quantum gravity. We calculate the number of particles in order to obtain the critical temperature. The Bose-Einstein functions are replaced by series, whose high order terms are related to powers of the polymer length. It is shown that the condensation temperature presents a shift respect to the standard case, for small values of the polymer scale. In typical experimental conditions, it is possible to establish a bound for lambda(2) up to <= 10(-16) m(2). To improve this bound we should decrease the. frequency of the trap and also decrease the number of particles. (C) 2013 Elsevier B.V. All rights reserved.
Keyword:
QUANTUM-GRAVITY
CRITICAL-TEMPERATURE
HARMONIC TRAPS
GAS
FLUCTUATIONS
NUMBER
IDEAL
DIMENSIONS
POTENTIALS
PARTICLES
期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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