Results 101 to 110 of about 77,490 (298)

Universal Behaviors of Speed of Sound from Holography

, 2017
We investigate the speed of sound in $(d+1)$-dimensional field theory by studying its dual $(d+2)$-dimensional gravity theory from gauge/gravity correspondence.
Yang, Yi, Yuan, Pei-Hung
core   +1 more source

Exact Renormalization Group and Loop Equation [PDF]

, 1999
We propose a gauge invariant formulation of the exact renormalization group equation for nonsupersymmetric pure U(N) Yang-Mills theory, based on the construction by Tim Morris.
A. Jevicki, A. Jevicki, A. M. Polyakov, A. M. Polyakov, A. Sen, A. W. Peet, B. Sakita, D. Berenstein, E. Alvarez, E. T. Akhmedov, E. Witten, G. Marchesini, J. M. Maldacena, J. Maldacena, J. Polchinski, J. Polchinski, K. G. Wilson, M. Ikehara, M. Porrati, N. Drukker, N. Drukker, N. Ishibashi, N. Itzhaki, N. Seiberg, S. S. Gubser, Shinji Hirano, T. Banks, V. Balasubramanian, Y. M. Makeenko, Y. M. Makeenko   +29 more
core   +5 more sources

Brighter branes, enhancement of photon production by strong magnetic fields in the gauge/gravity correspondence [PDF]

Journal of High Energy Physics, 2014
We use the gauge/gravity correspondence to calculate the rate of photon production in a strongly coupled N=4 plasma in the presence of an intense magnetic field. We start by constructing a family of back reacted geometries that include the black D3-brane solution, as a smooth limiting case for B=0, and extends to backgrounds with an arbitrarily large ...
Arciniega, Gustavo, Nettel, Francisco, Ortega, Patricia, Patiño, Leonardo   +3 more
openaire   +4 more sources

Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification

Advanced Engineering Materials, EarlyView.
A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu, Paul Hans Kamm, Francisco García‐Moreno   +2 more
wiley   +1 more source

On holographic confining QFTs on AdS

Journal of High Energy Physics
Holographic quantum field theories that confine in flat space, are considered on a fixed AdS space. The space of holographic solutions for such theories is constructed and three types of regular solutions are found.
Ahmad Ghodsi, Elias Kiritsis, Francesco Nitti   +2 more
doaj   +1 more source

Learning the Alpha-bits of black holes

Journal of High Energy Physics, 2019
When the bulk geometry in AdS/CFT contains a black hole, boundary subregions may be sufficient to reconstruct certain bulk operators if and only if the black hole microstate is known, an example of state dependence.
Patrick Hayden, Geoffrey Penington
doaj   +1 more source

On the GKP Vacuum in Gauge/Gravity Correspondences

, 2014
Within the framework of the AdS5/CFT4 correspondence, the GKP string living on a AdS5 x S5 background finds a counterpart in the anti-ferromagnetic vacuum state for the spin chain, fruitfully employed to investigate the dual N=4 SYM superconformal gauge theory.
openaire   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Subregion duality, wedge classification and no global symmetries in AdS/CFT

Journal of High Energy Physics
We study various notions of ‘subregion duality’ in the context of AdS/CFT. We highlight the differences between the ‘background wedge’ and the ‘operator reconstruction wedges,’ providing a resolution to the paradox raised in [1].
Ning Bao, Yikun Jiang, Joydeep Naskar
doaj   +1 more source

Asymptotic Chern-Simons formulation of spacelike stretched AdS gravity

, 2010
We show that the asymptotic structures of topologically massive gravity in the spacelike stretched AdS sector and an $SL(2,R)\times U(1)$ Chern-Simons gauge theory can be identified by adopting a natural correspondence between their fields and coupling ...
Blagojević, M., Cvetković, B.
core   +1 more source