Quantum dimer model for the pseudogap metal

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Quantum dimer model for the pseudogap metal

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Title: Quantum dimer model for the pseudogap metal
Author: Punk, Matthias; Allais, Andrea; Sachdev, Subir

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Citation: Punk, Matthias, Andrea Allais, and Subir Sachdev. 2015. “Quantum Dimer Model for the Pseudogap Metal.” Proc Natl Acad Sci USA 112 (31) (July 20): 9552–9557. doi:10.1073/pnas.1512206112.
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Abstract: We propose a quantum dimer model for the metallic state of the hole-doped cuprates at low hole density, p. The Hilbert space is spanned by spinless, neutral, bosonic dimers and spin S=1/2S=1/2, charge +e+e fermionic dimers. The model realizes a “fractionalized Fermi liquid” with no symmetry breaking and small hole pocket Fermi surfaces enclosing a total area determined by p. Exact diagonalization, on lattices of sizes up to 8×88×8, shows anisotropic quasiparticle residue around the pocket Fermi surfaces. We discuss the relationship to experiments.
Published Version: doi:10.1073/pnas.1512206112
Other Sources: https://arxiv.org/abs/1501.00978
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:27729291
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