Josephson effect in superfluid atomic Fermi-gases
arXiv:cond-mat/0204376 · doi:10.1103/PhysRevA.66.041603
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.
4 pages, 2 figures
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- Correlated Tunneling Dynamics of an Ultracold Fermi-Fermi Mixture Confined in a Double-Well
- Quantum Control in Qutrit Systems using Hybrid Rabi-STIRAP Pulses
- Photon blockade and the quantum-to-classical transition in the driven-dissipative Josephson pendulum coupled to a resonator
- Impurity in a bosonic Josephson junction: swallowtail loops, chaos, self-trapping and the poor man's Dicke model
- Long-Range triplet Josephson Current Modulated by the Interface Magnetization Texture
- DC and AC Josephson effects with superfluid Fermi atoms across a Feshbach resonance
- Beyond linear response spectroscopy of ultracold Fermi gases
- Spin-asymmetric Josephson effect
- Tunneling of polarized fermions in 3D double wells
- Spin-asymmetric Josephson plasma oscillations
- Signatures of macroscopic quantum coherence in ultracold dilute Fermi gases
- Tunable critical supercurrent and spin-asymmetric Josephson effect in superlattices
- Evolution of fragmented states