Josephson relation for disordered superfluids
| Type of Publication: | Journal article |
| Author: | Müller, Cord A. |
| Year of publication: | 2015 |
| Published in: | Physical Review A ; 91 (2015), 2. - 023602. - ISSN 0556-2791. - eISSN 1094-1622 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevA.91.023602 |
| Summary: |
The Josephson sum rule relates the superfluid density to the condensate order parameter via the infrared residue of the single-particle Green's function. We establish an effective Josephson relation for disordered condensates valid upon ensemble averaging. This relation has the merit of showing explicitly how superfluidity links to the coherent density, i.e., the density of condensed particles with zero momentum. Detailed agreement is reached with perturbation theory for weak disorder.
|
| Subject (DDC): | 530 Physics |
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MÜLLER, Cord A., 2015. Josephson relation for disordered superfluids. In: Physical Review A. 91(2), 023602. ISSN 0556-2791. eISSN 1094-1622. Available under: doi: 10.1103/PhysRevA.91.023602
@article{Muller2015Josep-30441, title={Josephson relation for disordered superfluids}, year={2015}, doi={10.1103/PhysRevA.91.023602}, number={2}, volume={91}, issn={0556-2791}, journal={Physical Review A}, author={Müller, Cord A.}, note={Article Number: 023602} }
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