1. S.A. Hartnoll, C.P. Herzog and G.T. Horowitz, Building a Holographic Superconductor, Phys. Rev. Lett. 101 (2008) 031601 [ arXiv:0803.3295 ] [ SPIRES ].
2. For a review see, for example, S.A. Hartnoll, Lectures on holographic methods for condensed matter physics, Class. Quant. Grav. 26 (2009) 224002 [ arXiv:0903.3246 ] [ SPIRES ].
3. See also, C.P. Herzog, Lectures on Holographic Superfluidity and Superconductivity, J. Phys. A 42 (2009) 343001 [ arXiv:0904.1975 ] [ SPIRES ].
4. See also, G.T. Horowitz, Introduction to Holographic Superconductors, arXiv:1002.1722 [ SPIRES ].
5. P. Basu, A. Mukherjee and H.-H. Shieh, Supercurrent: Vector Hair for an AdS Black Hole, Phys. Rev. D 79 (2009) 045010 [ arXiv:0809.4494 ] [ SPIRES ].