Results 81 to 90 of about 98,278 (278)

Perturbations of anti-de Sitter black holes

, 2010
I review perturbations of black holes in asymptotically anti-de Sitter space. I show how the quasi-normal modes governing these perturbations can be calculated analytically and discuss the implications on the hydrodynamics of gauge theory fluids per the ...
A. Ishibashi, A.O. Starinets, C. Martinez, D. Birmingham, D. Molnar, G. Koutsoumbas, G. Michalogiorgakis, G. Policastro, G. Siopsis, G.T. Horowitz, J. Alsup, J. Natário, J.J. Friess, P. Arnold, R. Baier, R.A. Konoplya, S. Musiri, S. Musiri, S.A. Hartnoll, T. Hertog, V. Cardoso, V. Cardoso   +21 more
core   +1 more source

Holographic Fermi and Non-Fermi Liquids with Transitions in Dilaton Gravity [PDF]

, 2011
We study the two-point function for fermionic operators in a class of strongly coupled systems using the gauge-gravity correspondence. The gravity description includes a gauge field and a dilaton which determines the gauge coupling and the potential ...
A Dabholkar, A Donos, A Donos, A Sen, AB Migdal, B Gouteraux, C Charmousis, C-M Chen, CP Herzog, E Witten, GT Horowitz, GW Gibbons, H Liu, JM Maldacena, JP Gauntlett, K Balasubramanian, K Goldstein, K Goldstein, K Goldstein, L Huijse, M Cubrovic, M Edalati, M Kulaxizi, MA Vasiliev, Nilay Kundu, Norihiro Iizuka, P Koroteev, Prithvi Narayan, R Kallosh, R Meyer, S Bellucci, S Ferrara, S Ferrara, S Gubser, S Jain, S Jain, S Kachru, S Kachru, S Kachru, S Kachru, S Sachdev, S-S Lee, SA Hartnoll, SA Hartnoll, Sandip P. Trivedi, SK Chakrabarti, SS Gubser, SS Gubser, T Faulkner, T Faulkner, T Senthil, X Arsiwalla   +51 more
core   +2 more sources

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

Advanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech, Yangyiwei Yang, Timileyin David Oyedeji, Prasanth Bondi, Mareen Goßling, Bilal Gökce, Bai‐Xiang Xu   +6 more
wiley   +1 more source

Can one hear the shape of a wormhole?

Journal of High Energy Physics, 2022
A large class of flat big bang-big crunch cosmologies with negative cosmological constant are related by analytic continuation to asymptotically AdS traversable wormholes with planar cross section.
Stefano Antonini, Petar Simidzija, Brian Swingle, Mark Van Raamsdonk   +3 more
doaj   +1 more source

D-Branes on the Conifold and N=1 Gauge/Gravity Dualities

, 2002
We review extensions of the AdS/CFT correspondence to gauge/ gravity dualities with N=1 supersymmetry. In particular, we describe the gauge/gravity dualities that emerge from placing D3-branes at the apex of the conifold.
A Brandhuber, A Buchel, A Ceresole, A Hanany, A Kehagias, A Loewy, AW Peet, C Bachas, C Bachas, CG Callan, CP Herzog, D Jatkar, D Morrison, DJ Gross, E Witten, E Witten, E Witten, EG Gimon, F Bigazzi, HJ Kim, IR Klebanov, IR Klebanov, IR Klebanov, IR Klebanov, IR Klebanov, IR Klebanov, J Maldacena, J Maldacena, J Maldacena, K Becker, K Dasgupta, K Hori, K Ohta, L Romans, LP Zayas, M Bertolini, M Bianchi, M Cvetič, M Grana, M Henningson, M Shifman, MR Douglas, MR Douglas, N Seiberg, O Aharony, O Aharony, P Candelas, R Minasian, S Gubser, S Kachru, SJ Rey, SL Adler, SS Gubser, SS Gubser, SS Gubser, SS Gubser, U Danielsson, VA Novikov   +57 more
core   +1 more source

Integrability of classical strings dual for noncommutative gauge theories [PDF]

, 2014
We derive the gravity duals of noncommutative gauge theories from the Yang-Baxter sigma model description of the AdS_5xS^5 superstring with classical r-matrices.
Matsumoto, Takuya, Yoshida, Kentaroh
core   +2 more sources

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

Advanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus, Gefei Li, Martin Czekalla, Leonardo Fernandes Gomes, Christoph Pille, Hermann Pleteit, Adrian Struss, Keno Toussaint, Andre Irretier, Münip Dalgic   +9 more
wiley   +1 more source

Duality symmetries in string-inspired supergravity: T-dualities and the gauge/gravity correspondence

, 2015
Motivated by the AdS/CFT correspondence, new supersymmetric solutions to Type IIB and Type IIA supergravity are presented. These solutions contain AdS5 or AdS4 factors and are generated using T-duality symmetries of supergravity.
C. A. Whiting
semanticscholar   +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