Planck-scale effects on Bose-Einstein condensates
arXiv:1204.4670 · doi:10.1209/0295-5075/98/60001
Abstract
The effects of a Planck-scale deformation of the Minkowski energy-momentum dispersion relation on the phenomenology of non-trapped Bose-Einstein condensates (BECs) are examined. Such a deformation is shown to cause a shift in the condensation temperature of the BEC and, for a specific functional form of deformation, this shift can be as large as the current measured precision on . For a cold-atom BEC with a particle density we find a fractional shift of order , but this can be much larger for even more dilute BECs. We discuss the possibility of planning specific experiments with BECs that might provide phenomenological constraints on Planck-scale physics. These corrections to are found to be extremely small for ultrarelativistic BECs implying that, in some cases, Planck-scale effects may be more important in low- rather than high-energy processes.
5 pages, some references added, version published in EPL
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