Topological order, emergent gauge fields, and Fermi surface reconstruction

S Sachdev - Reports on Progress in Physics, 2018 - iopscience.iop.org
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 …

Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa2Cu3Oy

Y Sato, S Kasahara, H Murayama, Y Kasahara… - Nature Physics, 2017 - nature.com
A long-standing controversial issue in the quest to understand the superconductivity in
cuprates is the nature of the enigmatic pseudogap region of the phase diagram. Especially …

A model of d-wave superconductivity, antiferromagnetism, and charge order on the square lattice

M Christos, ZX Luo, H Shackleton… - Proceedings of the …, 2023 - National Acad Sciences
We describe the confining instabilities of a proposed quantum spin liquid underlying the
pseudogap metal state of the hole-doped cuprates. The spin liquid can be described by a …

Quantum oscillations in the hole-doped cuprates and the confinement of spinons

PM Bonetti, M Christos, S Sachdev - … of the National Academy of Sciences, 2024 - pnas.org
A long-standing problem in the study of the under-hole-doped cuprates has been the
description of the Fermi surfaces underlying the high magnetic field quantum oscillations …

Topological superconductivity in the doped chiral spin liquid on the triangular lattice

YF Jiang, HC Jiang - Physical Review Letters, 2020 - APS
It has long been proposed that doping a chiral spin liquid (CSL) or fractional quantum Hall
state can give rise to topological superconductivity. Despite intensive effort, definitive …

Electronic spectra with paramagnon fractionalization in the single-band Hubbard model

E Mascot, A Nikolaenko, M Tikhanovskaya, YH Zhang… - Physical Review B, 2022 - APS
We examine spectral properties of a recently proposed theory of the intermediate
temperature pseudogap metal phase of the cuprates. We show that this theory can be …

Fractionalized Fermi liquid with bosonic chargons as a candidate for the pseudogap metal

S Chatterjee, S Sachdev - Physical Review B, 2016 - APS
Doping a Mott-insulating Z 2 spin liquid can lead to a fractionalized Fermi liquid (FL*). Such
a phase has several favorable features that make it a candidate for the pseudogap metal for …

The novel metallic states of the cuprates: Topological Fermi liquids and strange metals

S Sachdev, D Chowdhury - Progress of Theoretical and …, 2016 - academic.oup.com
We review ideas on the nature of the metallic states of the hole-doped cuprate high
temperature superconductors, with an emphasis on the connections between the Luttinger …

Holon Wigner crystal in a lightly doped kagome quantum spin liquid

HC Jiang, T Devereaux, SA Kivelson - Physical Review Letters, 2017 - APS
We address the problem of a lightly doped spin liquid through a large-scale density-matrix
renormalization group study of the tJ model on a kagome lattice with a small but nonzero …

Hall number across a van Hove singularity

AV Maharaj, I Esterlis, Y Zhang, BJ Ramshaw… - Physical Review B, 2017 - APS
In the context of the relaxation time approximation to Boltzmann transport theory, we
examine the behavior of the Hall number n H of a metal in the neighborhood of a Lifshitz …