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Holographic codes from hyperinvariant tensor networks [PDF]

open access: yesNature Communications, 2023
Holographic quantum-error correcting codes are models of bulk/boundary dualities such as the anti-de Sitter/conformal field theory (AdS/CFT) correspondence, where a higher-dimensional bulk geometry is associated with the code’s logical degrees of freedom.
Matthew Steinberg   +2 more
doaj   +2 more sources

Scrambling-Enhanced Quantum Battery Charging in Black Hole Analogues. [PDF]

open access: yesAdv Sci (Weinh)
By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Liu Z, Li Y, Tian Z, Wang J.
europepmc   +2 more sources

Tensor network models of AdS/qCFT [PDF]

open access: yesQuantum, 2022
The study of critical quantum many-body systems through conformal field theory (CFT) is one of the pillars of modern quantum physics. Certain CFTs are also understood to be dual to higher-dimensional theories of gravity via the anti-de Sitter/conformal ...
Alexander Jahn   +2 more
doaj   +1 more source

Holographic duality between local Hamiltonians from random tensor networks

open access: yesJournal of High Energy Physics, 2022
The AdS/CFT correspondence realises the holographic principle where information in the bulk of a space is encoded at its border. We are yet a long way from a full mathematical construction of AdS/CFT, but toy models in the form of holographic quantum ...
Harriet Apel, Tamara Kohler, Toby Cubitt
doaj   +1 more source

Universal entropy and hawking radiation of near-extremal AdS4 black holes

open access: yesJournal of High Energy Physics, 2021
We compute the Bekenstein-Hawking entropy of near-extremal asymptotically AdS4 electrically charged rotating black holes using three different methods: (i) from the gravity solution, (ii) from the near-horizon Kerr/CFT correspondence and (iii) from the ...
Marina David, Jun Nian
doaj   +1 more source

Asymptotically free AdS3/CFT2

open access: yesJournal of High Energy Physics, 2022
We propose a new AdS 3 /CFT 2 duality, in which the bulk string theory has a target spacetime AdS 3 times a squashed three-sphere S ♭ 3 $$ {\mathbbm{S}}_{\flat}^3 $$ , and the dual CFT 2 is a symmetric product of sigma models on ℝ ϕ × S ♭ 3 $$ {\mathbbm ...
Bruno Balthazar   +3 more
doaj   +1 more source

Logarithmic corrections to the entropy of rotating black holes and black strings in AdS5

open access: yesJournal of High Energy Physics, 2022
We investigate logarithmic corrections to the entropy of supersymmetric, rotating, asymptotically AdS5 black holes and black strings. Within the framework of the AdS/CFT correspondence, the entropy of these black objects is determined, on the field ...
Marina David   +3 more
doaj   +1 more source

Bulk gauge fields and holographic RG from exact RG

open access: yesJournal of High Energy Physics, 2023
Recently, a method was described for deriving Holographic RG equation in AdS D+1 space starting from an Exact RG equation of a D-dimensional boundary CFT [22].
Pavan Dharanipragada   +2 more
doaj   +1 more source

Photon sphere and quasinormal modes in AdS/CFT

open access: yesJournal of High Energy Physics, 2023
Photon spheres are the characteristic of general black holes, thus are a suitable touchstone for the emergence of gravitational spacetime in the AdS/CFT correspondence.
Koji Hashimoto   +3 more
doaj   +1 more source

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