Electron spectral functions in a quantum dimer model for topological metals

  title={Electron spectral functions in a quantum dimer model for topological metals},
  author={Sebastian D. Huber and John Feldmeier and Matthias Punk},
  journal={Physical Review B},
We study single electron spectral functions in a quantum dimer model introduced by Punk, Allais and Sachdev (Ref. [1]). The Hilbert space of this model is spanned by hard-core coverings of the square lattice with two types of dimers: ordinary bosonic spin-singlets, as well as fermionic dimers carrying charge +e and spin 1/2, which can be viewed as bound-states of spinons and holons in a doped resonating valence bond (RVB) liquid. This model realizes a metallic phase with topological order and… 

Figures from this paper

Spectral Functions and Exact Solutions in a Quantum Dimer Model for Pseudogap Metals
We study a two-species quantum dimer model on the square lattice originally proposed by Punk, Allais and Sachdev in Ref.[1] that captures several key properties of the pseudogap phase in high-Tc
Exact Solution of a Two-Species Quantum Dimer Model for Pseudogap Metals.
An exact ground state solution of a quantum dimer model introduced by Punk, Allais, and Sachdev that features ordinary bosonic spin-singlet dimers as well as fermionic dimers that can be viewed as bound states of spinons and holons in a hole-doped resonating valence bond liquid is presented.
Solvable lattice models for metals with Z2 topological order
We present quantum dimer models in two dimensions which realize metallic ground states with Z2 topological order. Our models are generalizations of a dimer model introduced in [PNAS 112,9552-9557
Quantum oscillations and criticality in a fermionic and bosonic dimer model for the cuprates
We study quantum oscillations for a system of fermionic and bosonic dimers and compare the results to those experimentally observed in the cuprate superconductors in their underdoped regime. Based on
Bond particle theory for the pseudogap phase of underdoped cuprates
  • R. Eder
  • Physics
    Physical Review B
  • 2019
We present a theory for the lightly doped t-J model which is of possible relevance for the normal state of underdoped cuprates. Starting from an arbitrary dimer covering of the plane an exact
Topological order and Fermi surface reconstruction
This review describes how topological order can reconstruct Fermi surfaces of metals, even in the absence of translational symmetry breaking. We begin with an introduction to topological order using
Signatures of correlated magnetic phases in the two-spin density matrix
Experiments with quantum gas microscopes have started to explore the antiferromagnetic phase of the two-dimensional Fermi-Hubbard model and effects of doping with holes away from half filling. In
Topological order, emergent gauge fields, and Fermi surface reconstruction.
  • S. Sachdev
  • Physics, Medicine
    Reports on progress in physics. Physical Society
  • 2019
This review describes how topological order associated with the presence of emergent gauge fields can reconstruct Fermi surfaces of metals, even in the absence of translational symmetry breaking. We
Insight into the Topological Nodal Line Metal YB2 with Large Linear Energy Range: A First-Principles Study
This work focused on a topological metal, YB2, with phase stability and a P6/mmm space group, and studied the phonon dispersion, electronic structure, and topological nodal line signatures via first principles, and observed a large linear energy range around the band crossing points.
Slave-boson description of pseudogap metals in t−J models
We present a simple modification of the standard U(1) slave boson construction for the single band t-J model which accounts for two-particle bound states of spinons and holons. This construction


Electronic quasiparticles in the quantum dimer model: Density matrix renormalization group results
We study a recently proposed quantum dimer model for the pseudogap metal state of the cuprates. The model contains bosonic dimers, representing a spin-singlet valence bond between a pair of
Quantum dimer model for the pseudogap metal
This model describes an exotic metal that is similar in many respects to simple metals like silver, however, the simple metallic character coexists with “topological order” and long-range quantum entanglement previously observed only in exotic insulators or fractional quantum Hall states in very high magnetic fields.
Fermi surface reconstruction in hole-doped t-J models without long-range antiferromagnetic order.
We calculate the Fermi surface of electrons in hole-doped, extended t-J models on a square lattice in a regime where no long-range antiferromagnetic order is present, and no symmetries are broken.
d -wave superconductivity in boson+fermion dimer models
We present a slave-particle mean-field study of the mixed boson+fermion quantum dimer model introduced by Punk, Allais, and Sachdev [PNAS 112, 9552 (2015)] to describe the physics of the pseudogap
Properties of holons in the quantum dimer model.
I introduce a doped two-dimensional quantum dimer model describing a doped Mott insulator and retaining the original Fermi statistics of the electrons. This model shows a rich phase diagram including
Confinement transition to density wave order in metallic doped spin liquids
Insulating quantum spin liquids can undergo a confinement transition to a valence bond solid state via the condensation of topological excitations of the associated gauge theory. We extend the theory
Statistical transmutation in doped quantum dimer models.
It is proved a "statistical transmutation" symmetry of doped quantum dimer models on the square, triangular, and kagome lattices: the energy spectrum is invariant under a simultaneous change of statistics of the holes and of the signs of all the dimer resonance loops.
ARPES studies of cuprate Fermiology: superconductivity, pseudogap and quasiparticle dynamics
We present angle-resolved photoemission spectroscopy (ARPES) studies of the cuprate high-temperature superconductors which elucidate the relation between superconductivity and the pseudogap and
Spectroscopic evidence for Fermi liquid-like energy and temperature dependence of the relaxation rate in the pseudogap phase of the cuprates
Cuprate high-Tc superconductors exhibit enigmatic behavior in the nonsuperconducting state. For carrier concentrations near “optimal doping” (with respect to the highest Tcs) the transport and
Effective Theory of Fermi Pockets in Fluctuating Antiferromagnets
We describe fluctuating two-dimensional metallic antiferromagnets by transforming to a rotating reference frame in which the electron spin polarization is measured by its projections along the local