DocumentCode
2226539
Title
Experimental observation of the Bogoliubov transformation for a Bose-Einstein condensed gas
Author
Vogels, J.M. ; Xu, K. ; Raman, C. ; Abo-Shaeer, J.R. ; Ketterle, W.
Author_Institution
Dept. of Phys., MIT, Cambridge, MA, USA
fYear
2002
fDate
19-24 May 2002
Firstpage
154
Abstract
Summary form only given. Phonons with wavevector q//spl planck/-were optically imprinted into a Bose-Einstein condensate. Their momentum distribution was analyze using Bragg spectroscopy with a high momentum transfer. The wavefunction of these elementary excitations was shown to be a superposition of +q and -q free particle momentum states, in agreement with the Bogoliubov quasiparticle picture.
Keywords
Bose-Einstein condensation; angular momentum; phonons; quasiparticles; Bogoliubov quasiparticle; Bogoliubov transformation; Bose-Einstein condensate; Bragg spectroscopy; condensate with phonons; elementary excitations; free particle momentum states; high momentum transfer; momentum distribution; two photon recoil; Phonons;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location
Long Beach, CA, USA
Print_ISBN
1-55752-708-3
Type
conf
DOI
10.1109/QELS.2002.1031245
Filename
1031245
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