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- Title
Vortices in small Bose or Fermi systems with repulsive interactions.
- Authors
Christensson, J.; Borgh, M.; Koskinen, M.; Kavoulakis, G.; Manninen, M.; Reimann, S. M.
- 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.
- Subjects
PARTICLES (Nuclear physics); NUCLEAR physics; COLLISIONS (Nuclear physics); VORTEX theory (Astrophysics); ASTROPHYSICS
- Publication
Few-Body Systems, 2008, Vol 43, Issue 1-4, p161
- ISSN
0177-7963
- Publication type
Article
- DOI
10.1007/s00601-008-0226-6