Results 51 to 60 of about 98,278 (278)

Introduction to Holographic Superconductors [PDF]

open access: yes, 2010
These lectures give an introduction to the theory of holographic superconductors. These are superconductors that have a dual gravitational description using gauge/gravity duality.
C.C. Homes   +49 more
core   +1 more source

Rényi entropies and area operator from gravity with Hayward term

open access: yesJournal of High Energy Physics, 2020
In the context of the holographic duality, the entanglement entropy of ordinary QFT in a subregion in the boundary is given by a quarter of the area of an minimal surface embedded in the bulk spacetime.
Marcelo Botta-Cantcheff   +2 more
doaj   +1 more source

The Markov gap for geometric reflected entropy

open access: yesJournal of High Energy Physics, 2021
The reflected entropy S R (A : B) of a density matrix ρ AB is a bipartite correlation measure lower-bounded by the quantum mutual information I(A : B). In holographic states satisfying the quantum extremal surface formula, where the reflected entropy is ...
Patrick Hayden   +2 more
doaj   +1 more source

Gauge/Gravity Duality and Some Applications [PDF]

open access: yes, 2010
We discuss the AdS/CFT correspondence in which space-time emerges from an interacting theory of D-branes and open strings. These ideas have a historical continuity with QCD which is an interacting theory of quarks and gluons.
Baier R.   +8 more
core   +1 more source

Coadjoint orbit action of Virasoro group and two-dimensional quantum gravity dual to SYK/tensor models

open access: yesJournal of High Energy Physics, 2017
The Nambu-Goldstone (NG) bosons of the SYK model are described by a coset space Diff/SL(2, ℝ), where Diff, or Virasoro group, is the group of diffeomorphisms of the time coordinate valued on the real line or a circle. It is known that the coadjoint orbit
Gautam Mandal   +2 more
doaj   +1 more source

Symmetry-resolved entanglement in AdS3/CFT2 coupled to U(1) Chern-Simons theory

open access: yesJournal of High Energy Physics, 2021
We consider symmetry-resolved entanglement entropy in AdS3/CFT2 coupled to U(1) Chern-Simons theory. We identify the holographic dual of the charged moments in the two-dimensional conformal field theory as a charged Wilson line in the bulk of AdS3 ...
Suting Zhao   +2 more
doaj   +1 more source

A holographic inequality for N = 7 regions

open access: yesJournal of High Energy Physics, 2023
In holographic duality, boundary states that have semiclassical bulk duals must obey inequalities, which bound their subsystems’ von Neumann entropies. Hitherto known inequalities constrain entropies of reduced states on up to N = 5 disjoint subsystems ...
Bartłomiej Czech, Yunfei Wang
doaj   +1 more source

From sources to initial data and back again: on bulk singularities in Euclidean AdS/CFT

open access: yesJournal of High Energy Physics, 2020
A common method to prepare states in AdS/CFT is to perform the Euclidean path integral with sources turned on for single-trace operators. These states can be interpreted as coherent states of the bulk quantum theory associated to Lorentzian initial data ...
Alexandre Belin, Benjamin Withers
doaj   +1 more source

Non-conformal behavior of holographic entanglement measures

open access: yesJournal of High Energy Physics, 2022
We evaluate the holographic entanglement entropy, HEE, holographic mutual information, HMI, and holographic entanglement of purification, EoP, in a non-conformal model at zero and finite temperature.
M. Ali-Akbari, M. Asadi, B. Amrahi
doaj   +1 more source

Entropy of Hawking radiation for two-sided hyperscaling violating black branes

open access: yesJournal of High Energy Physics, 2022
In this paper, we study the von Neumann entropy of Hawking radiation S R for a d + 2-dimensional Hyperscaling Violating (HV) black brane which is coupled to two Minkowski spacetimes as the thermal baths.
Farzad Omidi
doaj   +1 more source

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