The bulk dual of SYK: cubic couplings

DJ Gross, V Rosenhaus - Journal of High Energy Physics, 2017 - Springer
A bstract The SYK model, a quantum mechanical model of N≫ 1 Majorana fermions χ i, with
a q-body, random interaction, is a novel realization of holography. It is known that the AdS 2 …

Quantum chaos and holographic tensor models

C Krishnan, S Sanyal, PN Subramanian - Journal of High Energy Physics, 2017 - Springer
A bstract A class of tensor models were recently outlined as potentially calculable examples
of holography: their perturbative large-N behavior is similar to the Sachdev-Ye-Kitaev (SYK) …

Supersymmetric SYK model and random matrix theory

T Li, J Liu, Y Xin, Y Zhou - Journal of High Energy Physics, 2017 - Springer
A bstract In this paper, we investigate the effect of supersymmetry on the symmetry
classification of random matrix theory ensembles. We mainly consider the random matrix …

Unitary matrix models, free fermion ensembles, and the giant graviton expansion

S Murthy - arXiv preprint arXiv:2202.06897, 2022 - arxiv.org
We consider a class of matrix integrals over the unitary group $ U (N) $ with an infinite set of
couplings characterized by a series $ f (q)=\sum_ {n\ge 1} a_n q^ n $, with $ a_n\in\mathbb …

Infrared realization of dS2 in AdS2

D Anninos, DM Hofman - Classical and Quantum Gravity, 2018 - iopscience.iop.org
We describe a two-dimensional geometry that smoothly interpolates between an
asymptotically AdS 2 geometry and the static patch of dS 2. We find this' centaur'geometry to …

The semiclassical gravitational path integral and random matrices (toward a microscopic picture of a dS2 universe)

D Anninos, B Mühlmann - Journal of High Energy Physics, 2021 - Springer
A bstract We study the genus expansion on compact Riemann surfaces of the gravitational
path integral\({\mathcal {Z}} _ {\mathrm {grav}}^{(m)}\) in two spacetime dimensions with …

Notes on matrix models (matrix musings)

D Anninos, B Mühlmann - Journal of Statistical Mechanics …, 2020 - iopscience.iop.org
In these notes we explore a variety of models comprising a large number of constituents. An
emphasis is placed on integrals over large Hermitian matrices, as well as quantum …

Spectra of eigenstates in fermionic tensor quantum mechanics

IR Klebanov, A Milekhin, F Popov, G Tarnopolsky - Physical Review D, 2018 - APS
We study the O (N 1)× O (N 2)× O (N 3) symmetric quantum mechanics of 3-index Majorana
fermions. When the ranks N i are all equal, this model has a large N limit which is dominated …

Phases of melonic quantum mechanics

F Ferrari, FI Schaposnik Massolo - Physical Review D, 2019 - APS
We explore in detail properties of two melonic quantum mechanical theories which can be
formulated either as fermionic matrix quantum mechanics in the new large D limit, or as …

Matrix integrals & finite holography

D Anninos, B Mühlmann - Journal of High Energy Physics, 2021 - Springer
A bstract We explore the conjectured duality between a class of large N matrix integrals,
known as multicritical matrix integrals (MMI), and the series (2m− 1, 2) of non-unitary …