Holographic Berezinskii-Kosterlitz-Thouless Transitions
Kristan Jensen, Andreas Karch, Dam T. Son, and Ethan G. Thompson
TL;DR
This paper presents the first holographic example of a quantum BKT phase transition in two dimensions, occurring in a D3/D5 system under specific conditions, with implications for understanding quantum criticality.
Contribution
It demonstrates a novel holographic realization of a quantum BKT transition in 2D and explores its properties and potential generality.
Findings
Quantum BKT transition observed in D3/D5 system
Transition becomes second order at nonzero temperature
BKT scaling is destroyed at any nonzero temperature
Abstract
We find the first example of a quantum Berenzinskii-Kosterlitz-Thouless (BKT) phase transition in two spatial dimensions via holography. This transition occurs in the D3/D5 system at nonzero density and magnetic field. At any nonzero temperature, the BKT scaling is destroyed and the transition becomes second order with mean-field exponents. We go on to conjecture about the generality of quantum BKT transitions in two spatial dimensions.
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