Parametric amplification of the mechanical vibrations of a suspended nanowire by magnetic coupling to a Bose-Einstein condensate

We consider the possibility of parametric amplification of a mechanical vibration mode of a nanowire due to its interaction with a Bose-Einstein condensate (BEC) of ultracold atoms. The magneto-mechanical coupling is mediated by the vibrationally modulated magnetic field around the current-carrying...

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Published in:arXiv.org 2014-09
Main Authors: Darázs, Z, Kurucz, Z, Kálmán, O, Kiss, T, tágh, J, Domokos, P
Format: Article
Language:English
Subjects:
Amplification
Chemical potential
Condensates
Coupling
Matter & antimatter
Nanowires
Organic chemistry
Vibration mode
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Kurucz, Z
Kálmán, O
Kiss, T
tágh, J
Domokos, P
description We consider the possibility of parametric amplification of a mechanical vibration mode of a nanowire due to its interaction with a Bose-Einstein condensate (BEC) of ultracold atoms. The magneto-mechanical coupling is mediated by the vibrationally modulated magnetic field around the current-carrying nanowire, which can induce atomic transitions between different hyperfine sublevels. We theoretically analyze the limitations arising from the fact that the spin inverted atomic medium which feeds the mechanical oscillation has a finite bandwidth in the range of the chemical potential of the condensate.
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subjects Amplification
Chemical potential
Condensates
Coupling
Matter & antimatter
Nanowires
Organic chemistry
Vibration mode
title Parametric amplification of the mechanical vibrations of a suspended nanowire by magnetic coupling to a Bose-Einstein condensate
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