Sachdev-Ye-Kitaev models and beyond: Window into non-Fermi liquids
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 …
body systems without quasiparticle excitations, and its connections to various theoretical …
Dynamics and transport at the threshold of many-body localization
S Gopalakrishnan, SA Parameswaran - Physics Reports, 2020 - Elsevier
Many-body localization (MBL) describes a class of systems that do not approach thermal
equilibrium under their intrinsic dynamics; MBL and conventional thermalizing systems form …
equilibrium under their intrinsic dynamics; MBL and conventional thermalizing systems form …
JT gravity as a matrix integral
P Saad, SH Shenker, D Stanford - arXiv preprint arXiv:1903.11115, 2019 - arxiv.org
We present exact results for partition functions of Jackiw-Teitelboim (JT) gravity on two-
dimensional surfaces of arbitrary genus with an arbitrary number of boundaries. The …
dimensional surfaces of arbitrary genus with an arbitrary number of boundaries. The …
Entanglement phase transitions in measurement-only dynamics
Unitary circuits subject to repeated projective measurements can undergo an entanglement
phase transition (EPT) as a function of the measurement rate. This transition is generally …
phase transition (EPT) as a function of the measurement rate. This transition is generally …
Quantum chaos challenges many-body localization
Characterizing states of matter through the lens of their ergodic properties is a fascinating
new direction of research. In the quantum realm, the many-body localization (MBL) was …
new direction of research. In the quantum realm, the many-body localization (MBL) was …
A semiclassical ramp in SYK and in gravity
P Saad, SH Shenker, D Stanford - arXiv preprint arXiv:1806.06840, 2018 - arxiv.org
In finite entropy systems, real-time partition functions do not decay to zero at late time.
Instead, assuming random matrix universality, suitable averages exhibit a growing" ramp" …
Instead, assuming random matrix universality, suitable averages exhibit a growing" ramp" …
Thouless time analysis of Anderson and many-body localization transitions
Spectral statistics of disordered systems encode Thouless and Heisenberg timescales,
whose ratio determines whether the system is chaotic or localized. We show that the scaling …
whose ratio determines whether the system is chaotic or localized. We show that the scaling …
Exact spectral form factor in a minimal model of many-body quantum chaos
The most general and versatile defining feature of quantum chaotic systems is that they
possess an energy spectrum with correlations universally described by random matrix …
possess an energy spectrum with correlations universally described by random matrix …
Krylov complexity in large q and double-scaled SYK model
A bstract Considering the large q expansion of the Sachdev-Ye-Kitaev (SYK) model in the
two-stage limit, we compute the Lanczos coefficients, Krylov complexity, and the higher …
two-stage limit, we compute the Lanczos coefficients, Krylov complexity, and the higher …
Probing many-body quantum chaos with quantum simulators
The spectral form factor (SFF), characterizing statistics of energy eigenvalues, is a key
diagnostic of many-body quantum chaos. In addition, partial spectral form factors (PSFFs) …
diagnostic of many-body quantum chaos. In addition, partial spectral form factors (PSFFs) …