Strong renormalization of the Fermi-surface topology close to the Mott transition

Abstract

The underlying Fermi surface is a key concept for strongly-interacting electron models and has been introduced to generalize the usual notion of the Fermi surface to generic (superconducting or insulating) systems. By using improved correlated wave functions that contain backflow and Jastrow terms, we examine the two-dimensional $t-t^{\prime }$ Hubbard model and find a non-trivial renormalization of the topology of the underlying Fermi surface close to the Mott insulator. Moreover, we observe a sharp crossover region, which arises from the metal-insulator transition, from a weakly interacting metal at small coupling to a resonating valence-bond superconductor at intermediate coupling. A violation of the Luttinger theorem is detected at low hole dopings.

7 pages and 9 figures, more results on the Fermi surface

References in corpus (8)

• A Phenomenological Theory of The Pseudogap State
• On the Reconstructed Fermi Surface in the Underdoped Cuprates
• Role of backflow correlations for the non-magnetic phase of the t-t' Hubbard model
• Extremely Correlated Fermi Liquids
• Magnetism and superconductivity in the $t-t^{\prime }-J$ model
• The doping-driven evolution of the superconducting state of a doped Mott insulator: a key for the high temperature superconductivity
• Determining the underlying Fermi surface of strongly correlated superconductors
• Extremely Correlated Fermi Liquid Description of Normal State ARPES in Cuprates

Cited by in corpus (20)

• Pseudogap and Fermi surface topology in the two-dimensional Hubbard model
• Crossover between BCS Superconductor and Doped Mott Insulator of d-wave Pairing State in Two-Dimensional Hubbard Model
• Impact of nonlocal correlations over different energy scales: A Dynamical Vertex Approximation study
• Hidden Mott transition and large-$U$ superconductivity in the two-dimensional Hubbard model
• Theoretical study of insulating mechanism in multi-orbital Hubbard models with a large spin-orbit coupling: Slater versus Mott scenario in Sr${}_2$IrO${}_4$
• One-dimensional spin liquid, collinear, and spiral phases from uncoupled chains to the triangular lattice
• Luttinger's theorem in presence of Luttinger surfaces
• Phase diagram of the square lattice bilayer Hubbard model: a variational Monte Carlo study
• Mott correlated states in the underdoped two-dimensional Hubbard model: variational Monte Carlo versus a dynamical cluster approximation
• Metal-insulator transitions, superconductivity, and magnetism in the two-band Hubbard model
• Dimensional-crossover-driven Mott transition in the frustrated Hubbard model
• Band-Renormalization Effects and Predominant Antiferromagnetic Order in Two-Dimensional Hubbard Model
• Spin and charge dynamics of a quasi-one-dimensional antiferromagnetic metal
• Gutzwiller variational wave function for multi-orbital Hubbard models in finite dimensions
• Superconductivity in the Hubbard model: a hidden-order diagnostics from the Luther-Emery phase on ladders
• Realistic estimates of superconducting properties for the cuprates: reciprocal-space diagrammatic expansion combined with variational approach
• Polaronic correlations from optimized ancilla wave functions for the Fermi-Hubbard model
• Local moments versus itinerant antiferromagnetism: magnetic phase diagram and spectral properties of the anisotropic square lattice Hubbard model
• Signatures of the Fermi surface reconstruction of a doped Mott insulator in a slab geometry
• Low-lying quasiparticle excitations in strongly-correlated superconductors: An ansatz from BCS quasiparticle excitations?