Exploring colourful holographic superconductors

Peeters, Kasper; Powell, Jonathan; Zamaklar, Marija

Abstract

We explore a class of holographic superconductors built using non-abelian condensates on probe branes in conformal and non-conformal backgrounds. These are shown to exhibit behaviour of the specific heat which resembles that of heavy fermion compounds in the superconducting phase. Instead of showing BCS-like exponential behaviour, the specific heat is polynomial in the temperature. It exhibits a jump at the critical temperature, in agreement with real-world superconductors. We also analyse the behaviour of the energy gap and the AC and DC conductivities, and find that the systems can be either semi-conducting or metallic just above the critical temperature.

Citation

Peeters, K., Powell, J., & Zamaklar, M. (2009). Exploring colourful holographic superconductors. Journal of High Energy Physics, 2009(09), Article 101. https://doi.org/10.1088/1126-6708/2009/09/101

• Journal Article Type: Article
• Publication Date: Sep 23, 2009
• Deposit Date: Feb 17, 2011
• Publicly Available Date: May 6, 2014
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2009
• Issue: 09
• Article Number: 101
• DOI: https://doi.org/10.1088/1126-6708/2009/09/101
• Keywords: AdS-CFT and dS-CFT Correspondence, Gauge-gravity correspondence.
• Public URL: https://durham-repository.worktribe.com/output/1543657