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

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

2012-01-31

arxiv.org/abs/1201.6672v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages

Scientific paper

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 particles.

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