Sachdev-Ye-Kitaev models and beyond: Window into non-Fermi liquids

D Chowdhury, A Georges, O Parcollet… - Reviews of Modern Physics, 2022 - APS
This is a review of the Sachdev-Ye-Kitaev (SYK) model of compressible quantum many-
body systems without quasiparticle excitations, and its connections to various theoretical …

Magnetotransport in a model of a disordered strange metal

AA Patel, J McGreevy, DP Arovas, S Sachdev - Physical Review X, 2018 - APS
Despite much theoretical effort, there is no complete theory of the “strange” metal state of the
high temperature superconductors, and its linear-in-temperature T resistivity. Recent …

Translationally invariant non-fermi-liquid metals with critical fermi surfaces: Solvable models

D Chowdhury, Y Werman, E Berg, T Senthil - Physical Review X, 2018 - APS
We construct examples of translationally invariant solvable models of strongly correlated
metals, composed of lattices of Sachdev-Ye-Kitaev dots with identical local interactions …

Linear resistivity and Sachdev-Ye-Kitaev (SYK) spin liquid behavior in a quantum critical metal with spin-1/2 fermions

P Cha, N Wentzell, O Parcollet… - Proceedings of the …, 2020 - National Acad Sciences
“Strange metals” with resistivity depending linearly on temperature T down to low T have
been a long-standing puzzle in condensed matter physics. Here, we consider a lattice model …

Breakdown of semiclassical description of thermoelectricity in near-magic angle twisted bilayer graphene

B Ghawri, PS Mahapatra, M Garg, S Mandal… - Nature …, 2022 - nature.com
The planar assembly of twisted bilayer graphene (tBLG) hosts multitude of interaction-driven
phases when the relative rotation is close to the magic angle (θ m= 1.1∘). This includes …

Dirac fast scramblers

J Kim, E Altman, X Cao - Physical Review B, 2021 - APS
We introduce a family of Gross-Neveu-Yukawa models with a large number of fermion and
boson flavors as higher dimensional generalizations of the Sachdev-Ye-Kitaev model. The …

Intrinsic superconducting instabilities of a solvable model for an incoherent metal

D Chowdhury, E Berg - Physical review research, 2020 - APS
We construct a family of translationally invariant lattice models with a large number (N) of
orbitals at every site coupled together via single-electron tunneling. By tuning the relative …

Critical strange metal from fluctuating gauge fields in a solvable random model

AA Patel, S Sachdev - Physical Review B, 2018 - APS
Building upon techniques employed in the construction of the Sachdev-Ye-Kitaev model,
which is a solvable (0+ 1)-dimensional model of a non-Fermi liquid, we develop a solvable …

Quench, thermalization, and residual entropy across a non-Fermi liquid to Fermi liquid transition

A Haldar, P Haldar, S Bera, I Mandal, S Banerjee - Physical Review Research, 2020 - APS
We study the thermalization, after sudden and slow quenches, in an interacting model
having a quantum phase transition from a Sachdev-Ye-Kitaev (SYK) non-Fermi liquid (NFL) …

Correlation between phase stiffness and condensation energy across the non-Fermi to Fermi-liquid crossover in the Yukawa-Sachdev-Ye-Kitaev model on a lattice

D Valentinis, GA Inkof, J Schmalian - Physical Review Research, 2023 - APS
We construct and analyze a lattice generalization of the Yukawa-Sachdev-Ye-Kitaev model,
where spinful fermions experience onsite, random, all-to-all interactions with an Einstein …