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

Abstract

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.

4 pages

References in corpus (2)

• Excitation of phonons in a Bose-Einstein condensate by light scattering
• Bragg spectroscopy of a strongly interacting 85Rb Bose-Einstein condensate

Cited by in corpus (6)

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• Superfluids in Polymer Quantum Mechanics
• Polymer quantization in the Bogoliubov's regime for a homogeneous one-dimensional Bose-Einstein condensate
• Weakly interacting Bose-Einstein condensates in temperature-dependent generic traps