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Vortices in small Bose or Fermi systems with repulsive interactions

Vortices in small Bose or Fermi systems with repulsive interactions
Vortices in small Bose or Fermi systems with repulsive interactions
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
0177-7963
161-166
Christensson, J.
450b78b8-fa9f-49f0-a0ff-dcf106c76d1b
Borgh, M.
a3c181f8-0535-46cd-bb9a-6e930a81f86e
Koskinen, M.
959081c6-d118-43de-96f8-9d7798c5c8c9
Kavoulakis, G.
88ae1823-bdde-4c1c-9658-26b191428c7a
Manninen, M.
fd5106ea-6562-4c78-a65a-63f64c198fcb
Reimann, S. M.
8319a40d-552d-41f8-af7c-4674e9e4eb86
Christensson, J.
450b78b8-fa9f-49f0-a0ff-dcf106c76d1b
Borgh, M.
a3c181f8-0535-46cd-bb9a-6e930a81f86e
Koskinen, M.
959081c6-d118-43de-96f8-9d7798c5c8c9
Kavoulakis, G.
88ae1823-bdde-4c1c-9658-26b191428c7a
Manninen, M.
fd5106ea-6562-4c78-a65a-63f64c198fcb
Reimann, S. M.
8319a40d-552d-41f8-af7c-4674e9e4eb86

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), 161-166. (doi:10.1007/s00601-008-0226-6).

Record type: Article

Abstract

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

Identifiers

Local EPrints ID: 198745
URI: https://eprints.soton.ac.uk/id/eprint/198745
ISSN: 0177-7963
PURE UUID: 96f0b3b0-4b0f-49fc-a4c8-789401f092e5

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Date deposited: 06 Oct 2011 15:21
Last modified: 16 Jul 2019 23:22

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Contributors

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

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