Dark solitons in holographic superfluids
Abstract
We construct dark soliton solutions in a holographic model of a relativistic superfluid. We study the length scales associated with the condensate and the charge density depletion, and find that the two scales differ by a nontrivial function of the chemical potential. By adjusting the chemical potential, we study the variation of the depletion of charge density at the interface.
- Publication:
-
Physical Review D
- Pub Date:
- December 2009
- DOI:
- 10.1103/PhysRevD.80.121901
- arXiv:
- arXiv:0906.5217
- Bibcode:
- 2009PhRvD..80l1901K
- Keywords:
-
- 11.25.Tq;
- 03.75.Lm;
- 03.75.Ss;
- 04.70.Dy;
- Gauge/string duality;
- Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitations;
- Degenerate Fermi gases;
- Quantum aspects of black holes evaporation thermodynamics;
- High Energy Physics - Theory;
- Condensed Matter - Quantum Gases
- E-Print:
- 5 pages, Revtex, 5 figures, some typos corrected. Reference added