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Title: Remarks on the Sachdev-Ye-Kitaev model

Journal Article · · Physical Review D
 [1];  [1]
  1. Inst. for Advanced Study, Princeton, NJ (United States)

We study a quantum mechanical model proposed by Sachdev, Ye and Kitaev. The model consists of N Majorana fermions with random interactions of a few fermions at a time. It it tractable in the large N limit, where the classical variable is a bilocal fermion bilinear. The model becomes strongly interacting at low energies where it develops an emergent conformal symmetry. We study two and four point functions of the fundamental fermions. This provides the spectrum of physical excitations for the bilocal field. The emergent conformal symmetry is a reparametrization symmetry, which is spontaneously broken to SL(2;R), leading to zero modes. These zero modes are lifted by a small residual explicit breaking, which produces an enhanced contribution to the four point function. This contribution displays a maximal Lyapunov exponent in the chaos region (out of time ordered correlator). We expect these features to be universal properties of large N quantum mechanics systems with emergent reparametrization symmetry. This article is largely based on talks given by Kitaev, which motivated us to work out the details of the ideas described there.

Research Organization:
Institute for Advanced Study, Princeton, NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0009988
OSTI ID:
1536177
Alternate ID(s):
OSTI ID: 1331021
Journal Information:
Physical Review D, Vol. 94, Issue 10; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1065 works
Citation information provided by
Web of Science

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A New Large N Expansion for General Matrix–Tensor Models journal July 2019
The 1 / N Expansion of the Symmetric Traceless and the Antisymmetric Tensor Models in Rank Three journal August 2019
Gravitational shockwaves on rotating black holes journal February 2019
Unscrambling the physics of out-of-time-order correlators journal October 2018
Mimicking black hole event horizons in atomic and solid-state systems journal November 2018
Geometric actions for three-dimensional gravity journal December 2017
A generalized phase space approach for solving quantum spin dynamics journal August 2019
An SYK-like model without disorder journal October 2019
The ${\imath }\epsilon $ prescription in the SYK model journal January 2018
Creating and probing the Sachdev–Ye–Kitaev model with ultracold gases: Towards experimental studies of quantum gravity journal August 2017
Cavity-QED simulator of slow and fast scrambling journal May 2019
Classical glasses, black holes, and strange quantum liquids journal November 2019
Global phase diagram of the one-dimensional Sachdev-Ye-Kitaev model at finite N journal December 2019
Out-of-time-order correlation in marginal many-body localized systems journal April 2017
Family of Sachdev-Ye-Kitaev models motivated by experimental considerations journal June 2018
Spectral form factor in non-Gaussian random matrix theories journal July 2019
Disordered fermions, extra dimensions, and a solvable Yang-Mills theory journal August 2019
Non-Gaussian disorder average in the Sachdev-Ye-Kitaev model journal June 2019
Tripartite mutual information, entanglement, and scrambling in permutation symmetric systems with an application to quantum chaos journal November 2018
Anti–de Sitter Space from Optimization of Path Integrals in Conformal Field Theories journal August 2017
Slow Relaxation and Diffusion in Holographic Quantum Critical Phases journal October 2019
Recent Developments in the Holographic Description of Quantum Chaos journal March 2019
Out of time ordered effective dynamics of a quartic oscillator journal January 2019
Charged quantum fields in AdS$_2$ journal January 2019
Dynamical Thermalization of Interacting Fermionic Atoms in a Sinai Oscillator Trap journal August 2019
The ABC of Higher-Spin AdS/CFT journal January 2018
Quantum Bound to Chaos and the Semiclassical Limit journal May 2018
A solvable tensor field theory journal December 2019
Unifying scrambling, thermalization and entanglement through measurement of fidelity out-of-time-order correlators in the Dicke model journal April 2019
Does gravity come from quantum information? journal October 2018
Entropic uncertainty relations for quantum information scrambling journal August 2019
Minisuperspace computation of the Mabuchi spectrum journal August 2018
Particle motion near high-spin black holes journal December 2019
Quantum resonant systems, integrable and chaotic journal December 2018
Periodic Anderson model meets Sachdev-Ye-Kitaev interaction: a solvable playground for heavy fermion physics journal September 2018
Optimizing measurement strengths for qubit quasiprobabilities behind out-of-time-ordered correlators journal December 2019
Reentrant superconductivity in a quantum dot coupled to a Sachdev-Ye-Kitaev metal journal December 2019
Entanglement features of random Hamiltonian dynamics journal July 2018
Gapless odd-frequency superconductivity induced by the Sachdev-Ye-Kitaev model journal January 2019
Operator spreading in quantum maps journal March 2019
Three-dimensional superconformal quantum mechanics with s l ( 2 | 1 ) dynamical symmetry journal December 2019
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Digital Quantum Simulation of Minimal AdS / CFT journal July 2017
Phase Diagram of Planar Matrix Quantum Mechanics, Tensor, and Sachdev-Ye-Kitaev Models journal February 2018
Fine Grained Chaos in AdS 2 Gravity journal March 2018
Quantum and Classical Lyapunov Exponents in Atom-Field Interaction Systems journal January 2019
Emergent Critical Charge Fluctuations at the Kondo Breakdown of Heavy Fermions journal May 2019
Random k-Body Ensembles for Chaos and Thermalization in Isolated Systems journal July 2018
Tensorial Gross-Neveu models text January 2018
Reversible quantum information spreading in many-body systems near criticality text January 2018
Hamiltonian dynamics of a sum of interacting random matrices journal November 2019
Eigenstate entanglement in the Sachdev-Ye-Kitaev model journal August 2019
Noncommutative AdS 2 / CFT 1 duality: The case of massive and interacting scalar fields journal October 2019
Coadjoint Orbits, Cocycles and Gravitational Wess–Zumino journal July 2018
Chaotic-Integrable Transition in the Sachdev-Ye-Kitaev Model. text January 2018
Spectral and thermodynamic properties of the Sachdev-Ye-Kitaev model text January 2016
Gravitational shockwave on the Kerr-AdS horizon journal November 2019
Universal low temperature theory of charged black holes with AdS 2 horizons journal May 2019
Universal level statistics of the out-of-time-ordered operator journal July 2019
Chaos in a classical limit of the Sachdev-Ye-Kitaev model journal October 2019
Interacting Majorana modes at surfaces of noncentrosymmetric superconductors journal January 2020
Engineering quantum spin liquids and many-body Majorana states with a driven superconducting box circuit journal July 2018
Mini-BFSS matrix model in silico journal September 2019
Quantum chaos, thermalization, and entanglement generation in real-time simulations of the Banks-Fischler-Shenker-Susskind matrix model journal February 2019
Tenfold way and many-body zero modes in the Sachdev-Ye-Kitaev model text January 2019
Reversible Quantum Information Spreading in Many-Body Systems near Criticality text January 2019
Quantum simulation of the non-fermi-liquid state of Sachdev-Ye-Kitaev model journal June 2019
Unusual view of the Schwarzian theory journal December 2018
Evaporative Cooling and Self‐Thermalization in an Open System of Interacting Fermions journal October 2019
Slow Relaxation and Diffusion in Holographic Quantum Critical Phases text January 2019
Measurement of many-body chaos using a quantum clock text January 2016
Quantum Complexity and Negative Curvature text January 2016
Characterizing Many-Body Localization by Out-of-Time-Ordered Correlation text January 2016
The ABC of Higher-Spin AdS/CFT preprint January 2016
Out-of-time-order correlations in many-body localized and thermal phases text January 2016
Spectral and thermodynamic properties of the Sachdev-Ye-Kitaev model text January 2016
Analytical Spectral Density of the Sachdev-Ye-Kitaev Model at finite N text January 2017
Anti-de Sitter Space from Optimization of Path Integrals in Conformal Field Theories text January 2017
Solvable Sachdev-Ye-Kitaev models in higher dimensions: from diffusion to many-body localization text January 2017
Approximating the Sachdev-Ye-Kitaev model with Majorana wires text January 2017
De Finetti theorems and entanglement in large-N theories and gravity text January 2017
Competition between Chaotic and Non-Chaotic Phases in a Quadratically Coupled Sachdev-Ye-Kitaev Model text January 2017
Weight Shifting Operators and Conformal Blocks text January 2017
Eigenstate entanglement in the Sachdev-Ye-Kitaev model text January 2017
Chaos in a classical limit of the Sachdev-Ye-Kitaev model text January 2017
Quantum Simulation of the Non-Fermi-Liquid State of Sachdev-Ye-Kitaev Model text January 2017
Hierarchy of Information Scrambling, Thermalization, and Hydrodynamic Flow in Graphene text January 2017
Detecting equilibrium and dynamical quantum phase transitions in Ising chains via out-of-time-ordered correlators text January 2018
Universal level statistics of the out-of-time-ordered operator text January 2018
Disordered fermions, extra dimensions and a solvable Yang-Mills theory text January 2018
Falling Toward Charged Black Holes text January 2018
Tripartite mutual information, entanglement, and scrambling in permutation symmetric systems with an application to quantum chaos text January 2018
Localization in fractonic random circuits text January 2018
Mimicking black hole event horizons in atomic and solid-state systems preprint January 2018
Operator Spreading in Quantum Maps text January 2018
Quantum resonant systems, integrable and chaotic text January 2018
Eigenvalue instantons in the spectral form factor of random matrix model text January 2018
Symmetry Breaking in Coupled SYK or Tensor Models text January 2019
Integrable and chaotic dynamics of spins coupled to an optical cavity text January 2019
Majorana Fermion Quantum Mechanics for Higher Rank Tensors text January 2019
A generalized phase space approach for solving quantum spin dynamics text January 2019
Classical Glasses, Black Holes, and Strange Quantum Liquids text January 2019
Near horizon dynamics of three dimensional black holes text January 2019
Dynamical thermalization of interacting fermionic atoms in a Sinai-oscillator trap text January 2019

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