Search Results - "Yoon, Junggi"
-
1
SYK models and SYK-like tensor models with global symmetry
Published in The journal of high energy physics (01-10-2017)“…A bstract In this paper, we study an SYK model and an SYK-like tensor model with global symmetry. First, we study the large N expansion of the bi-local…”
Get full text
Journal Article -
2
Supersymmetric SYK model: bi-local collective superfield/supermatrix formulation
Published in The journal of high energy physics (01-10-2017)“…A bstract We discuss the bi-local collective theory for the N = 1 , 2 supersymmetric Sachdev-Ye-Kitaev (SUSY SYK) models. We construct a bi-local superspace,…”
Get full text
Journal Article -
3
A bound on chaos from stability
Published in The journal of high energy physics (01-11-2021)“…A bstract We explore the quantum chaos of the coadjoint orbit action of diffeomorphism group of S 1 . We study quantum fluctuation around a saddle point to…”
Get full text
Journal Article -
4
SYK-like tensor models on the lattice
Published in The journal of high energy physics (01-08-2017)“…A bstract We study large N tensor models on the lattice without disorder. We introduce techniques which can be applied to a wide class of models, and…”
Get full text
Journal Article -
5
Unitarity of entanglement and islands in two-sided Janus black holes
Published in The journal of high energy physics (25-01-2021)“…A bstract We explore the entanglement evolution of boundary intervals in eternal Janus black holes that can be embedded consistently into string theory in the…”
Get full text
Journal Article -
6
Supersymmetric SYK model with global symmetry
Published in The journal of high energy physics (01-08-2018)“…A bstract In this paper, we introduce an N = 1 supersymmetric SYK model with SO( q ) global symmetry. We study the large N expansion of the bi-local collective…”
Get full text
Journal Article -
7
The Thouless time for mass-deformed SYK
Published in The journal of high energy physics (01-09-2018)“…A bstract We study the onset of RMT dynamics in the mass-deformed SYK model (i.e. an SYK model deformed by a quadratic random interaction) in terms of the…”
Get full text
Journal Article -
8
On the chaos bound in rotating black holes
Published in The journal of high energy physics (01-05-2019)“…A bstract We study out-of-time-order correlators (OTOCs) of rotating BTZ black holes using two different approaches: the elastic eikonal gravity approximation,…”
Get full text
Journal Article -
9
Chaos in three-dimensional higher spin gravity
Published in The journal of high energy physics (01-07-2019)“…A bstract We discuss SL( N, ℂ) Chern-Simons higher spin gauge theories in Euclidean AdS 3 . With appropriate boundary term, we derive the higher spin…”
Get full text
Journal Article -
10
Gravitational edge mode in asymptotically AdS2: JT gravity revisited
Published in The journal of high energy physics (22-05-2024)“…A bstract We study the gravitational edge mode of the Jackiw-Teitelboim (JT) gravity and its sl (2, ℝ ) BF theory description with the asymptotic AdS 2…”
Get full text
Journal Article -
11
AdS maps and diagrams of bi-local holography
Published in The journal of high energy physics (01-03-2019)“…A bstract We present in detail the basic ingredients contained in bi-local holography, representing a constructive scheme for reconstructing AdS bulk theories…”
Get full text
Journal Article -
12
Schwarzian for colored Jackiw-Teitelboim gravity
Published in The journal of high energy physics (20-09-2022)“…A bstract We study the boundary effective action of the colored version of the Jackiw-Teitelboim (JT) gravity. We derive the boundary action, which is the…”
Get full text
Journal Article -
13
Color decorations of Jackiw-Teitelboim gravity
Published in The journal of high energy physics (29-08-2022)“…A bstract We introduce the colored version of Jackiw-Teitelboim (JT) gravity which is the two-dimensional dilaton gravity model with matrix-valued fields. It…”
Get full text
Journal Article -
14
TT¯-deformed fermionic theories revisited
Published in The journal of high energy physics (01-07-2021)“…A bstract We revisit T T ¯ deformations of d = 2 theories with fermions with a view toward the quantization. As a simple illustration, we compute the deformed…”
Get full text
Journal Article -
15
Python’s lunches in Jackiw-Teitelboim gravity with matter
Published in The journal of high energy physics (28-04-2022)“…A bstract We study Python’s lunch geometries in the two-dimensional Jackiw-Teitelboim model coupled to a massless scalar field in the semiclassical limit. We…”
Get full text
Journal Article -
16
Quantum correction to chaos in Schwarzian theory
Published in The journal of high energy physics (01-11-2019)“…A bstract We discuss the quantum correction to chaos in the Schwarzian theory. We carry out the semi-classical analysis of the Schwarzian theory to study…”
Get full text
Journal Article -
17
Tunneling between Multiple Histories as a Solution to the Information Loss Paradox
Published in Entropy (Basel, Switzerland) (15-12-2023)“…The information loss paradox associated with black hole Hawking evaporation is an unresolved problem in modern theoretical physics. In a recent brief essay, we…”
Get full text
Journal Article -
18
Dynamical Symmetry and the Thermofield State at Large N
Published in Universe (Basel) (01-02-2022)“…We discuss thermofield double QFT at real time, in the large N limit. First, we establish a (dynamical) symmetry, which we argue holds in general for the…”
Get full text
Journal Article -
19
Bi-local holography in the SYK model
Published in The journal of high energy physics (01-07-2016)“…A bstract We discuss large N rules of the Sachdev-Ye-Kitaev model and the bi-local representation of holography of this theory. This is done by establishing 1…”
Get full text
Journal Article -
20
Unitarity of Symplectic Fermions in α Vacua with Negative Central Charge
Published in Physical review letters (16-06-2023)“…We study the two-dimensional free symplectic fermion theory with antiperiodic boundary condition. This model has negative norm states with a naive inner…”
Get full text
Journal Article