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[Fizinfo] Darazs Zoltan eloadasa az ELTE-n jovo hetfon

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  • From: Andras Palyi <andraspalyi AT>
  • To: nanofizika-szeminarium AT, FIZINFO AT
  • Subject: [Fizinfo] Darazs Zoltan eloadasa az ELTE-n jovo hetfon
  • Date: Thu, 17 Oct 2013 13:53:04 +0200
  • List-archive: <>
  • List-id: ELFT HÍRADÓ <>

Az ELTE Nanofizika Szeminarium jovo hetfoi eloadasa:

Darazs Zoltan (Wigner FK SZFI): Parametric amplification of the mechanical vibrations of a suspended nanowire by magnetic coupling to a Bose-Einstein condensate

Idopont: 2013. oktober 21., hetfo, 10:15
Helyszin: ELTE Eszaki Tomb, 5.128-as terem (1117 Budapest, Pazmany Peter setany 1/A)

"We show how the vibrational modes of a nanowire may be coherently manipulated with a Bose-Einstein condensate of ultracold atoms. We consider the magneto-mechanical coupling between paramagnetic atoms and a current carrying, suspended nanowire. Atomic spin flips produce a back-action onto the wire vibrations, which can lead to mechanical mode amplification. In contrast to systems considered before, the condensate has a finite energy bandwidth in the range of the chemical potential and we explore the consequences of this on the parametric drive. Applying the resolvent method, we find a non-trivial threshold detuning for the amplification and determine the threshold coupling."

Minden erdeklodot szivesen latunk.

A szeminarium tovabbi programja:

Palyi Andras

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