Results 31 to 40 of about 84,616 (271)

Holographic complexity in gauge/string superconductors

open access: yesPhysics Letters B, 2016
Following a methodology similar to [1], we derive a holographic complexity for two dimensional holographic superconductors (gauge/string superconductors) with backreactions. Applying a perturbation method proposed by Kanno in Ref. [2], we study behaviors
Davood Momeni   +2 more
doaj   +1 more source

Information multiplexing from optical holography to multi-channel metaholography

open access: yesNanophotonics, 2023
Holography offers a vital platform for optical information storage and processing, which has a profound impact on many photonic applications, including 3D displays, LiDAR, optical encryption, and artificial intelligence.
Márquez Andrés   +4 more
doaj   +1 more source

Shooting null geodesics into holographic spacetimes

open access: yesJournal of High Energy Physics, 2023
We find, in the AdS/CFT, a source on the boundary which generates one wave packet drawing a null geodesic inside the bulk. Once such a wave packet dives into the bulk, it comes back to the boundary after a specific time, at which the expectation value of
Shunichiro Kinoshita   +2 more
doaj   +1 more source

Dynamical vacuum energy, holographic quintom, and the reconstruction of scalar-field dark energy [PDF]

open access: yes, 2006
When taking the holographic principle into account, the vacuum energy will acquire dynamical property that its equation of state is evolving. The current available observational data imply that the holographic vacuum energy behaves as quintom-type dark ...
A. Einstein   +7 more
core   +2 more sources

Holographic quantum distances and replica trick

open access: yesJournal of High Energy Physics, 2023
This paper gives concrete examples to exhibit how to use the replica trick to calculate the quantum (quasi-)distances holographically. First, we consider the fidelity and relative entropy between thermal states that are dual to the Schwarzschild-AdS ...
Zi-Qing Xiao, Run-Qiu Yang
doaj   +1 more source

From spacetime foam to holographic foam cosmology [PDF]

open access: yes, 2006
Due to quantum fluctuations, spacetime is foamy on small scales. For maximum spatial resolution of the geometry of spacetime, the holographic model of spacetime foam stipulates that the uncertainty or fluctuation of distance $l$ is given, on the average,
Ahluwalia   +51 more
core   +3 more sources

Nonequilibrium dynamical transition process between excited states of holographic superconductors

open access: yesJournal of High Energy Physics, 2020
We study the dynamics of the holographic s-wave superconductors described by the Einstein-Maxwell-complex scalar field theory with a negative cosmological constant.
Ran Li   +3 more
doaj   +1 more source

Holographic superconductors [PDF]

open access: yesJournal of High Energy Physics, 2008
It has been shown that a gravitational dual to a superconductor can be obtained by coupling anti-de Sitter gravity to a Maxwell field and charged scalar. We review our earlier analysis of this theory and extend it in two directions. First, we consider all values for the charge of the scalar field.
Hartnoll, Sean A.   +2 more
openaire   +2 more sources

Cosmology vs. Holography [PDF]

open access: yes, 1999
The most radical version of the holographic principle asserts that all information about physical processes in the world can be stored on its surface. This formulation is at odds with inflationary cosmology, which implies that physical processes in our ...
A. Buonanno   +23 more
core   +2 more sources

Quantum chaos and unitary black hole evaporation

open access: yesJournal of High Energy Physics, 2022
The formation and evaporation of small AdS black holes in a theory with a holographic dual is governed by the usual rules of quantum mechanics. The eigenstate thermalization hypothesis explains the validity of semiclassical gravity for local bulk ...
David A. Lowe, Lárus Thorlacius
doaj   +1 more source

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