Bragg spectroscopy of the multi-branch Bogoliubov spectrum of elongated Bose-Einstein condensates

Jeff Steihhauer, Nadav Katz, Roee Ozeri, Nir Davidson, Cesare Tozzo, Franco Dalfovo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents Bragg spectroscopy of the multi-branch Bogoliubov spectrum of elongated Bose-Einstein condensates. The condensate consists of N=105 atoms of 87Rb which was excited at wavenumber k by using two Bragg beams. Results are analyzed by numerically solving the Gross-Pitaevskii (GP) equation for the order parameter of the condensate. This study shows that the response of the condensate to a Bragg pulse is indeed significantly affected by the radial degrees of freedom. By using Bragg pulses longer than in previous measurements, this multi-branch spectrum is resolved, finding good agreement with the predictions of Gross-Pitaevskii theory.

Original languageAmerican English
Title of host publication2003 European Quantum Electronics Conference, EQEC 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages185
Number of pages1
ISBN (Electronic)0780377338, 9780780377332
DOIs
StatePublished - 2003
Externally publishedYes
EventEuropean Quantum Electronics Conference, EQEC 2003 - Munich, Germany
Duration: 22 Jun 200327 Jun 2003

Publication series

Name2003 European Quantum Electronics Conference, EQEC 2003

Conference

ConferenceEuropean Quantum Electronics Conference, EQEC 2003
Country/TerritoryGermany
CityMunich
Period22/06/0327/06/03

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