A quantum dimer model for the pseudogap metal

2015/01/31 by Matthias Punk, Andrea Allais, Subir Sachdev · 1 citation
Physics and Astronomy · #cond-mat.str-el #hep-th

paper · pdf · doi:10.1073/pnas.1512206112

published as Proceedings of the National Academy of Sciences 112, 9552 (2015) · 9+10 pages, 17 figures

arxiv created 2015/07/05 · arxiv updated 2015/11/24

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=1/2, charge +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 × 8, shows anisotropic quasiparticle residue around the pocket Fermi surfaces. We discuss the relationship to experiments.

Cited by

• Emergence of spin entanglement with the pseudogap onset in the Fermi-Hubbard model

Related

• Quantum oscillations in the hole-doped cuprates and the confinement of spinons
• Modeling the pseudogap metallic state in cuprates: quantum disordered pair density wave
• Fractionalized Fermi liquids and the cuprate phase diagram
• Geometric orthogonal metals: Hidden antiferromagnetism and pseudogap from fluctuating stripes
• Model for the occurrence of Fermi pockets without the pseudogap hypothesis in underdoped cuprate superconductors - Interplay of Jahn-Teller physics and Mott physics -