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Vortices in small Bose or Fermi systems with repulsive interactions

Christensson, J., Borgh, M., Koskinen, M., Kavoulakis, G., Manninen, M. and Reimann, S. M. (2008) Vortices in small Bose or Fermi systems with repulsive interactions Few-Body Systems, 43, (1-4), pp. 161-166. (doi:10.1007/s00601-008-0226-6).

Record type: Article


For rotating Bose-Einstein condensates, the occurrence of vortices has been much discussed in the Gross-Pitaevskii approach. Here, we study vortex formation in finite systems with few particles for weak and repulsive two-body interactions, by numerical diagonalization. Vortex formation is surprisingly similar for both (spinless) bosonic and fermionic particles. Breaking the rotational invariance of the Hamiltonian of the system reveals the vortex patterns. A transformation from a many-fermion to a many-boson state is proposed.

Presented at the 20th Few-Body Conference, Pisa, Italy, 10–14 September 2007

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Published date: 2008
Organisations: Applied Mathematics


Local EPrints ID: 198745
ISSN: 0177-7963
PURE UUID: 96f0b3b0-4b0f-49fc-a4c8-789401f092e5

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Date deposited: 06 Oct 2011 15:21
Last modified: 18 Jul 2017 11:17

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Author: J. Christensson
Author: M. Borgh
Author: M. Koskinen
Author: G. Kavoulakis
Author: M. Manninen
Author: S. M. Reimann

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