Propagation of relativistic charged particles in ultracold atomic gases with Bose-Einstein condensates

Details Propagation of relativistic charged particles in ultracold atomic gases with Bose-Einstein condensates Propagation of relativistic charged particles in ultracold atomic gases with Bose-Einstein condensates

2010-11-23

arxiv.org/abs/1011.5156v2

Physics

Condensed Matter

Quantum Gases

6 pages, 3 figures

Scientific paper

We study theoretically some effects produced by a propagation of the charged particles in dilute gases of alkali-metal atoms in the state with Bose-Einstein condensates. The energy change of the high-speed (relativistic) particle that corresponds to the Cherenkov effect in the condensate is investigated. We show that in the studied cases the particle can both loose and receive the energy from a gas. We find the necessary conditions for the particle acceleration in the multi-component condensate. It is shown that the Cherenkov effect in Bose-Einstein condensates can be used also for defining the spectral characteristics of atoms.

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