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Title

Momentum-resolved radio-frequency spectroscopy of ultracold atomic Fermi gases in a spin-orbit-coupled lattice

Author(s)

Liu, Xia-Ji

Abstract

We investigate theoretically momentum-resolved radio-frequency (rf) spectroscopy of a noninteracting atomic Fermi gas in a spin-orbit coupled lattice. This lattice configuration has been recently created at MIT for 6Li atoms, by coupling the two hyperfine spin states with a pair of Raman laser beams and additional rf coupling. Here, we show that momentum-resolved rf spectroscopy can measure single-particle energies and eigenstates and therefore resolve the band structure of the spin-orbit coupled lattice. In our calculations, we take into account the effects of temperatures and harmonic traps. Our predictions are to be confronted with future experiments on spin-orbit coupled Fermi gases of 40K atoms in a lattice potential.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy. Centre of Excellence for Quantum-Atom Optics

Source

Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 86, no. 3 (Sep 2012), article no. 033613

Publication year

2012

FOR Code(s)

01 Mathematical Sciences;  02 Physical Sciences;  03 Chemical Sciences

Keyword(s)

Fermi gases;  Harmonic traps;  Momentum-resolved radio-frequency;  Radio-frequency spectroscopy;  Temperatures;  Ultracold atoms

Publisher

American Physical Society

ISSN

1050-2947

Publisher URL

http://dx.doi.org/10.1103/PhysRevA.86.033613

Copyright

Copyright © 2012 American Physical Society. The published version is reproduced in accordance with the copyright policy of the publisher.

Full text

Peer reviewed