Semi-Holographic Quantum Criticality

Details Semi-Holographic Quantum Criticality Semi-Holographic Quantum Criticality

2011-08-01

arxiv.org/abs/1108.0421v2

Physics

High Energy Physics

High Energy Physics - Theory

RevTeX, 4+epsilon pages; v2: fixed typos, added a reference

Scientific paper

We identify the near-critical effective theory (EFT) for a wide class of low-temperature phase transitions found via holography. The EFT is of the semi-holographic type and describes both holographic Berezinskii-Kosterlitz-Thouless (BKT) and second-order transitions with non-trivial scaling. It is a simple generalization of the Ginzburg-Landau-Wilson paradigm to systems with an emergent (or hidden) conformal sector. Having identified the near-critical EFT, we explore its basic phenomenology by computing critical exponents and low-frequency correlators.

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