Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2012-02-24
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
A large linewidth of electronic transition of an electron trapped in a bubble ("bubblonium") possesses natural, or radiative, and inhomogeneous components. The latter mechanism of the line broadening requires dissipation. Dissipation of optical-frequency quantum into a liquid helium leads to an emission of an acoustic wave. The possibilities of detection of this acoustic signal are discussed in this paper. Finally, the low temperature analogues with several hard-to-observe astrophysical phenomena are discussed.
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