Josephson effect in superfluid atomic Fermi-gases
Superconductivity
2009-11-07 v1
Abstract
We consider an analog of the internal Josephson effect in superfluid atomic Fermi-gases. Four different hyperfine states of the atoms are assumed to be trapped and to form two superfluids via the BCS-type pairing. Weshow that Josephson oscillations can be realized by coupling the superfluids with two laser fields. Choosing the laser detunings in a suitable way leads to an asymmetric below-gap tunneling effect for which there exists no analogue in the context of solid-state superconductivity.
Cite
@article{arxiv.cond-mat/0204376,
title = {Josephson effect in superfluid atomic Fermi-gases},
author = {Gh. -S. Paraoanu and M. Rodriguez and P. Torma},
journal= {arXiv preprint arXiv:cond-mat/0204376},
year = {2009}
}
Comments
4 pages, 2 figures