Probing spacetime fluctuations using cold atom traps

Wang, Charles H.-T. and Bingham, Robert and Mendonca, J. Tito (2011) Probing spacetime fluctuations using cold atom traps. AIP Conference Proceedings, 1421. pp. 203-211. ISSN 1551-7616 (https://doi.org/10.1063/1.3679598)

Abstract

We investigate the position oscillation of a particle that models the center of mass quantum state of a trapped Bose-Einstein condensate coupled to the zero-point fluctuations of the gravitational field. A semiclassical analysis is performed that allows to calculate the mean square amplitude of the oscillation. In analogy with the Lamb shift in quantum electrodynamics, this gives rise to an upshift of the energy of the trapped condensates. We show that for an elongated trap, the energy shift scales quadratically with the length as well as cubically with the total number of atoms.

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• Item metadata

  Item type:	Article
  ID code:	52138
  Dates:	Date Event 9 February 2011 Published
  Subjects:	Science > Physics Science > Astronomy
  Department:	Faculty of Engineering > Electronic and Electrical Engineering Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	11 Mar 2015 15:42
  Last modified:	08 Apr 2024 22:05
  URI:	https://strathprints.strath.ac.uk/id/eprint/52138