Quantum Criticality of U(1) Gauge Theories with Fermionic and Bosonic Matter in Two Spatial Dimensions

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Quantum Criticality of U(1) Gauge Theories with Fermionic and Bosonic Matter in Two Spatial Dimensions

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Title: Quantum Criticality of U(1) Gauge Theories with Fermionic and Bosonic Matter in Two Spatial Dimensions
Author: Kaul, Ribhu; Sachdev, Subir

Note: Order does not necessarily reflect citation order of authors.

Citation: Kaul, Ribhu, and Subir Sachdev. 2008. Quantum criticality of U(1) gauge theories with fermionic and bosonic matter in two spatial dimensions. Physical Review B 77(15): 155105.
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Abstract: We consider relativistic \(U(1)\) gauge theories in \(2+1\) dimensions, with \(N_b\) species of complex bosons and \(N_f\) species of Dirac fermions at finite temperature. The quantum phase transition between the Higgs and Coulomb phases is described by a conformal field theory (CFT). At large \(N_b\) and \(N_f\), but for arbitrary values of the ratio \(N_b∕N_f\), we present computations of various critical exponents and universal amplitudes for these CFTs. We make contact with the different spin liquids, charge liquids, and deconfined critical points of quantum magnets that these field theories describe. We compute physical observables that may be measured in experiments or numerical simulations of insulating and doped quantum magnets.
Published Version: doi://10.1103/PhysRevB.77.155105
Other Sources: http://arxiv.org/abs/0801.0723v2
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:7495839

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  • FAS Scholarly Articles [7501]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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