Critical current of a superconducting wire via gauge/gravity duality

Sergei Khlebnikov

doi:10.1016/j.physletb.2012.07.052

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arXiv · 1201.5103

Critical current of a superconducting wire via gauge/gravity duality

Sergei Khlebnikov

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Abstract

We describe application of the gauge/gravity duality to study of thin superconducting wires at finite current. The large number N of colors of the gauge theory is identified with the number of filled transverse channels in the wire. On the gravity side, the physics is described by a system of D3 and D5 branes intersecting over a line. We consider the ground state of the system at fixed electric current and find that at zero temperature the normal state is always unstable with respect to appearance of a superconducting component. We discuss relation of our results to recent experiments on statistics of the switching current in nanowires.

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Sergei Khlebnikov. 2013-05-16. Critical current of a superconducting wire via gauge/gravity duality. https://doi.org/10.1016/j.physletb.2012.07.052

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