期刊
CLASSICAL AND QUANTUM GRAVITY
卷 29, 期 19, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/29/19/194001
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- Netherlands Organisation for Scientific Research (NWO)
- National Science Foundation [NSF PHY05-51164]
- Sloan research fellowship
Zero temperature states of matter at finite charge density are holographically described by a spacetime with an asymptotic electric flux. This flux can be sourced either by explicit charged matter fields in the bulk, by an extremal black hole horizon, or by a combination of the two. We refer to these as mesonic, fully fractionalized and partially fractionalized phases of matter, respectively. By coupling a charged fluid of fermions to an asymptotically AdS(4) Einstein-Maxwell-dilaton theory, we exhibit quantum phase transitions between all three of these phases. The onset of fractionalization can be either a first order or continuous phase transition. In the latter case, at the quantum critical point the theory displays an emergent Lifshitz scaling symmetry in the IR.
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