Wednesday, February 1, 2012

1201.6672 (A. Camacho et al.)

Ultra--cold gases and the detection of the Earth's rotation: Bogoliubov
space and gravitomagnetism

A. Camacho, E. Castellanos
The present work analyzes the consequences of the gravitomagnetic effect of
the Earth upon a bosonic gas in which the corresponding atoms have a
non--vanishing orbital angular momentum. Concerning the ground state of the
Bogoliubov space of this system we deduce the consequences, on the pressure and
on the speed of sound, of the gravitomagnetic effect. We prove that the effect
on a single atom is very small, but we also show that for some thermodynamical
properties the consequences scale as a non--trivial function of the number of
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