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 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.
- Received 2 March 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.041601
©2010 American Physical Society
Synopsis
Quantum phase transitions via holographic duality
Published 20 July 2010
String dualities are exploited to find a quantum phase transition in two spatial dimensions with non-mean-field exponents.
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