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Title

Visualization of vortex bound states in polarized fermi gases at unitarity

Author(s)

Hu, Hui;  Liu, Xia-Ji;  Drummond, P. D.

Abstract

We theoretically analyze a single vortex in a spin polarized 3D trapped atomic Fermi gas near a broad Feshbach resonance. Above a critical polarization the Andreev-like bound states inside the core become occupied by the majority spin component. As a result, the local density difference at the core center suddenly rises at low temperatures. This provides a way to visualize the lowest bound state using phase-contrast imaging. As the polarization increases, the core expands gradually and the energy of the lowest bound state decreases.

Publication type

Journal article

Source

Physical Review Letters, Vol. 98, no. 6 (2007), article no. 060406

Publication year

2007

FOR Code(s)

02 Physical Sciences

Keyword(s)

3D trapped atomic Fermi gas;  Atomic physics;  Electromagnetic wave polarisation;  Fermi level;  Feshbach resonance;  Image analysis;  Low temperature operations;  Vortex bound states;  Vortex flow

Publisher

American Physical Society

ISSN

0031-9007

Publisher URL

http://dx.doi.org/10.1103/PhysRevLett.98.060406

Copyright

Copyright © 2007 The American Physical Society. Published version of this paper reproduced here in accordance with the copyright policy of the publisher.

Full text

Peer reviewed