Results 41 to 50 of about 84,616 (271)

Hologrphy and holographic dark energy model

open access: yes, 2005
The holographic principle is used to discuss the holographic dark energy model. We find that the Bekenstein-Hawking entropy bound is far from saturation under certain conditions.
't Hooft G   +22 more
core   +2 more sources

Holographic Geometry and Noise in Matrix Theory

open access: yes, 2009
Using Matrix Theory as a concrete example of a fundamental holographic theory, we show that the emergent macroscopic spacetime displays a new macroscopic quantum structure, holographic geometry, and a new observable phenomenon, holographic noise, with ...
Craig J. Hogan   +3 more
core   +1 more source

Holographic Entanglement Entropy for 4D Conformal Gravity [PDF]

open access: yes, 2014
Using the proposal for holographic entanglement entropy in higher derivative gravities, we compute holographic entanglement entropy for the conformal gravity in four dimensions which turns out to be finite.
Alishahiha, Mohsen   +2 more
core   +2 more sources

Holographic Dark Information Energy

open access: yesEntropy, 2011
Landauer’s principle and the Holographic principle are used to derive the holographic information energy contribution to the Universe. Information energy density has increased with star formation until sufficient to start accelerating the expansion of ...
Michael Paul Gough
doaj   +1 more source

Holographic thermalization

open access: yesPhysical Review D, 2011
Using the AdS/CFT correspondence, we probe the scale-dependence of thermalization in strongly coupled field theories following a quench, via calculations of two-point functions, Wilson loops and entanglement entropy in d=2,3,4. In the saddlepoint approximation these probes are computed in AdS space in terms of invariant geometric objects - geodesics ...
Balasubramanian V   +9 more
openaire   +7 more sources

Holographic plasmons [PDF]

open access: yesJournal of High Energy Physics, 2018
Abstract Since holography yields exact results, even in situations where perturbation theory is not applicable, it is an ideal framework for modeling strongly correlated systems. We extend previous holographic methods to take the dynamical charge response into account and use this to perform the first holographic computation of the
U. Gran, M. Tornsö, T. Zingg
openaire   +3 more sources

Non-relativistic anyons from holography

open access: yesNuclear Physics B, 2017
We study generic types of holographic matter residing in Lifshitz invariant defect field theory as modeled by adding probe D-branes in the bulk black hole spacetime characterized by dynamical exponent z and with hyperscaling violation exponent θ.
Niko Jokela   +2 more
doaj   +1 more source

Holographic algorithms [PDF]

open access: yesCurrent Developments in Mathematics, 2005
Leslie Valiant recently proposed a theory of holo- graphic algorithms. These novel algorithms achieve exponential speed-ups for certain computational problems compared to naive algorithms for the same problems. The methodology uses Pfaffians and (planar) perfect matchings as basic computational primitives, and attempts to create exponential ...
openaire   +2 more sources

Holographic renormalization [PDF]

open access: yesNuclear Physics B, 2002
We systematically develop the procedure of holographic renormalization for RG flows dual to asymptotically AdS domain walls. All divergences of the on-shell bulk action can be cancelled by adding covariant local boundary counterterms determined by the near-boundary behavior of bulk fields.
BIANCHI, MASSIMO   +2 more
openaire   +4 more sources

Holographic supersolids

open access: yesJournal of High Energy Physics, 2022
Abstract A supersolid is a system that presents long-range order and shear rigidity as a solid but which also supports a non-dissipative superflow as a superfluid. From an effective perspective, supersolids are identified with phases of matter that break spontaneously translational invariance together with a global U(1) symmetry ...
Matteo Baggioli, Giorgio Frangi
openaire   +3 more sources

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