2010

Holographic quantum criticality from multi-trace deformations

Faulkner, Thomas, Horowitz, Gary T., Roberts, Matthew M.

Understand

We explore the consequences of multi-trace deformations in applications of gauge-gravity duality to condensed matter physics.

  • We find that they introduce a powerful new "knob" that can implement spontaneous symmetry breaking, and can be used to construct a new type of holographic superconductor.
  • This knob can be tuned to drive the critical temperature to zero, leading to a new quantum critical point.
  • We calculate nontrivial critical exponents, and show that fluctuations of the order parameter are `locally' quantum critical in the disordered phase.

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