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 …

Thermalization of non-Fermi-liquid electron-phonon systems: Hydrodynamic relaxation of the Yukawa-Sachdev-Ye-Kitaev model

H Hosseinabadi, SP Kelly, J Schmalian, J Marino - Physical Review B, 2023 - APS
We study thermalization dynamics in a fermion-phonon variant of the Sachdev-Ye-Kitaev
model coupled to an external cold thermal bath of harmonic oscillators. We find that …

Engineering SYK interactions in disordered graphene flakes under realistic experimental conditions

M Brzezińska, Y Guan, OV Yazyev, S Sachdev… - Physical Review Letters, 2023 - APS
We model interactions following the Sachdev-Ye-Kitaev (SYK) framework in disordered
graphene flakes up to 300 000 atoms in size (∼ 100 nm in diameter) subjected to an out-of …

Pairing at a single Van Hove point

R Ojajärvi, AV Chubukov, YC Lee, M Garst… - npj Quantum …, 2024 - nature.com
We show that an interacting electronic system with a single ordinary or extended Van Hove
point, which crosses the Fermi energy, is unstable against triplet superconductivity. The …

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 …

BCS to incoherent superconductivity crossover in the Yukawa-Sachdev-Ye-Kitaev model on a lattice

D Valentinis, GA Inkof, J Schmalian - Physical Review B, 2023 - APS
We provide a quantitative and controlled analysis of the phase diagram of the Yukawa-
Sachdev-Ye-Kitaev model on a lattice, in the normal and superconducting states. We …

Dynamical onset of light-induced unconventional superconductivity—a Yukawa-Sachdev-Ye-Kitaev study

L Grunwald, G Passetti, DM Kennes - Communications Physics, 2024 - nature.com
Using light irradiation to manipulate quantum materials has opened up avenues for
transiently inducing superconductivity in some systems. Despite experimental confirmation …

Superconductivity out of a non-Fermi liquid: Free energy analysis

SS Zhang, YM Wu, A Abanov, AV Chubukov - Physical Review B, 2022 - APS
In this paper, we present an in-depth analysis of the condensation energy E c for a
superconductor in a situation when superconductivity emerges out of a non-Fermi liquid due …

Superconductor-insulator transition in a non-Fermi liquid

AL Chudnovskiy, A Kamenev - Physical review letters, 2022 - APS
We present a model of a strongly correlated system with a non-Fermi liquid high temperature
phase. Its ground state undergoes an insulator to superconductor quantum phase transition …

Pairing instabilities of the Yukawa-SYK models with controlled fermion incoherence

W Choi, O Tavakol, YB Kim - SciPost Physics, 2022 - scipost.org
The interplay of non-Fermi liquid and superconductivity born out of strong dynamical
interactions is at the heart of the physics of unconventional superconductivity. As a solvable …