Elementary excitations of condensates in double-well traps

Kyota Egawa; Ippei Danshita; Nobuhiko Yokoshi; Susumu Kurihara

doi:10.1063/1.2354598

Elementary excitations of condensates in double-well traps

Kyota Egawa^*, Ippei Danshita, Nobuhiko Yokoshi, Susumu Kurihara

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We investigate collective excitations of Bose-Einstein condensates in double-well traps. We numerically solve the Bogoliubov-de Gennes equations with a double-well trap and show that a crossover from the dipole mode to the Josephson plasma oscillation occurs in the lowest excitation. It is found that the anomalous tunneling property of the low energy excitations dominates the crossover.

Original language	English
Title of host publication	AIP Conference Proceedings
Pages	43-44
Number of pages	2
Volume	850
DOIs	https://doi.org/10.1063/1.2354598
Publication status	Published - 2006
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL Duration: 2006 Aug 10 → 2006 Oct 17

Other

Other	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
City	Orlando, FL
Period	06/8/10 → 06/10/17

Keywords

Bogoliubov excitation
Bose-Einstein condensation
Double-well trap
Josephson plasma

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.2354598

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title = "Elementary excitations of condensates in double-well traps",

abstract = "We investigate collective excitations of Bose-Einstein condensates in double-well traps. We numerically solve the Bogoliubov-de Gennes equations with a double-well trap and show that a crossover from the dipole mode to the Josephson plasma oscillation occurs in the lowest excitation. It is found that the anomalous tunneling property of the low energy excitations dominates the crossover.",

keywords = "Bogoliubov excitation, Bose-Einstein condensation, Double-well trap, Josephson plasma",

author = "Kyota Egawa and Ippei Danshita and Nobuhiko Yokoshi and Susumu Kurihara",

year = "2006",

doi = "10.1063/1.2354598",

language = "English",

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volume = "850",

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T1 - Elementary excitations of condensates in double-well traps

AU - Egawa, Kyota

AU - Danshita, Ippei

AU - Yokoshi, Nobuhiko

AU - Kurihara, Susumu

PY - 2006

Y1 - 2006

N2 - We investigate collective excitations of Bose-Einstein condensates in double-well traps. We numerically solve the Bogoliubov-de Gennes equations with a double-well trap and show that a crossover from the dipole mode to the Josephson plasma oscillation occurs in the lowest excitation. It is found that the anomalous tunneling property of the low energy excitations dominates the crossover.

AB - We investigate collective excitations of Bose-Einstein condensates in double-well traps. We numerically solve the Bogoliubov-de Gennes equations with a double-well trap and show that a crossover from the dipole mode to the Josephson plasma oscillation occurs in the lowest excitation. It is found that the anomalous tunneling property of the low energy excitations dominates the crossover.

KW - Bogoliubov excitation

KW - Bose-Einstein condensation

KW - Double-well trap

KW - Josephson plasma

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UR - http://www.scopus.com/inward/citedby.url?scp=33947519352&partnerID=8YFLogxK

U2 - 10.1063/1.2354598

DO - 10.1063/1.2354598

M3 - Conference contribution

AN - SCOPUS:33947519352

SN - 0735403473

SN - 9780735403475

VL - 850

SP - 43

EP - 44

BT - AIP Conference Proceedings

T2 - LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24

Y2 - 10 August 2006 through 17 October 2006

ER -

Elementary excitations of condensates in double-well traps

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Keywords

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