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Josephson effect in superfluid atomic Fermi-gases

Gh. -S. Paraoanu·M. Rodriguez·P. Torma
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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.

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Gh. -S. Paraoanu, M. Rodriguez, P. Torma. 2002-04-17. Josephson effect in superfluid atomic Fermi-gases. https://doi.org/10.1103/physreva.66.041603

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