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Phys. Rev. A 64, 035601 (2001) [4 pages]

Ground-state properties of a trapped few-boson system under rotation: Beyond the “lowest-Landau-level” approximation

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Xia-Ji Liu1,3, Hui Hu1, Lee Chang2, and Shi-Qun Li1,3
1Department of Physics, Tsinghua University, Beijing 100084, China
2Center for Advanced Study, Tsinghua University, Beijing 100084, China
3Key Laboratory for Quantum Information and Measurements, Ministry of Education and Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China

Received 15 February 2001; published 9 August 2001

We consider a harmonically trapped few-boson system under rotation and investigate the ground-state properties beyond the usual “lowest-Landau-level” approximation by using exact diagonalizations in a restricted Hilbert subspace. We find that both the effective interaction energy and density distribution are strongly affected by the two-body interaction strength.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.035601
DOI:
10.1103/PhysRevA.64.035601
PACS:
03.75.Fi, 05.30.Jp, 67.40.Db, 67.40.Vs