Quantum fluctuations of zero-modes for trapped two-component Bose-Einstein condensates

研究成果: Conference contribution

抄録

Zero-mode operators associated with a spontaneous breakdown of internal symmetry are often suppressed and their quantum fluctuations are neglected owing to the absence of a definite criterion for determining the ground state and infrared divergences in physical quantities. Because the zero-mode fluctuations for systems with finite-size and spatially inhomogeneity cannot be neglected, we have proposed a novel treatment of the zero-mode for finite systems, which helps determine the unique ground state and evaluate the physical quantities without divergence. Following the proposed treatment, we consider trapped systems with two-component Bose-Einstein condensates. The results obtained demonstrate that the interaction strength between the two components considerably affect the dynamical properties, illustrating the importance of the zero-mode for finite systems.

本文言語English
ホスト出版物のタイトルProceedings of the 14th Asia Pacific Physics Conference
編集者Teck-Yong Tou, Jun'ichi Yokoyama, Roslan Abdul Shukor, Kazuhiro Tanaka, Hyoung Joon Choi, Ryoji Matsumoto, Oi-Hoong Chin, Jia Hou Chin, Kuru Ratnavelu
出版社American Institute of Physics Inc.
ISBN(電子版)9780735440630
DOI
出版ステータスPublished - 2021 2 5
イベント14th Asia Pacific Physics Conference, APPC 2019 - Kuching, Sarawak, Malaysia
継続期間: 2019 11 172019 11 22

出版物シリーズ

名前AIP Conference Proceedings
2319
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

Conference14th Asia Pacific Physics Conference, APPC 2019
国/地域Malaysia
CityKuching, Sarawak
Period19/11/1719/11/22

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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