Echo spectroscopy of bulk Bogoliubov excitations in trapped Bose-Einstein condensates

E. Gershnabel; N. Katz; R. Ozeri; E. Rowen; J. Steinhauer; N. Davidson

doi:10.1103/PhysRevA.69.041604

Echo spectroscopy of bulk Bogoliubov excitations in trapped Bose-Einstein condensates

E. Gershnabel^*, N. Katz, R. Ozeri, E. Rowen, J. Steinhauer, N. Davidson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The reduction of inhomogeneous linewidth of Bogoliubov excitations in trapped Bose-Einstein condensate (BEC) was investigated using echo spectroscopy. The echo method used for investigation was based on transfer of Bogoliubov excitations from momentum +q to -q by degenerate two-photon Bragg transition which was induced by an optical lattice. The line shape of echo excitation spectrum was calculated by the Gross-Pitaevskii equation (GPE). The results show an enhancement of echo rate at low momentum which emerged from constructive interference of amplitudes.

Original language	English
Article number	041604
Pages (from-to)	041604-1-041604-4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	69
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.69.041604
State	Published - Apr 2004
Externally published	Yes

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10.1103/PhysRevA.69.041604

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title = "Echo spectroscopy of bulk Bogoliubov excitations in trapped Bose-Einstein condensates",

abstract = "The reduction of inhomogeneous linewidth of Bogoliubov excitations in trapped Bose-Einstein condensate (BEC) was investigated using echo spectroscopy. The echo method used for investigation was based on transfer of Bogoliubov excitations from momentum +q to -q by degenerate two-photon Bragg transition which was induced by an optical lattice. The line shape of echo excitation spectrum was calculated by the Gross-Pitaevskii equation (GPE). The results show an enhancement of echo rate at low momentum which emerged from constructive interference of amplitudes.",

author = "E. Gershnabel and N. Katz and R. Ozeri and E. Rowen and J. Steinhauer and N. Davidson",

year = "2004",

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doi = "10.1103/PhysRevA.69.041604",

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AU - Katz, N.

AU - Ozeri, R.

AU - Rowen, E.

AU - Steinhauer, J.

AU - Davidson, N.

PY - 2004/4

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AB - The reduction of inhomogeneous linewidth of Bogoliubov excitations in trapped Bose-Einstein condensate (BEC) was investigated using echo spectroscopy. The echo method used for investigation was based on transfer of Bogoliubov excitations from momentum +q to -q by degenerate two-photon Bragg transition which was induced by an optical lattice. The line shape of echo excitation spectrum was calculated by the Gross-Pitaevskii equation (GPE). The results show an enhancement of echo rate at low momentum which emerged from constructive interference of amplitudes.

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Echo spectroscopy of bulk Bogoliubov excitations in trapped Bose-Einstein condensates

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