Exploring colourful holographic superconductors

Details Exploring colourful holographic superconductors Exploring colourful holographic superconductors

2009-07-09

arxiv.org/abs/0907.1508v1

JHEP 0909:101,2009

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, many figures

Scientific paper

10.1088/1126-6708/2009/09/101

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.

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