Results 61 to 70 of about 1,567,571 (289)

On Classical Equivalence Between Noncritical and Einstein Gravity : The AdS/CFT Perspectives

, 2012
We find that noncritical gravity, a special class of higher derivative gravity, is classically equivalent to Einstein gravity at the full nonlinear level.
DV Fursaev, DV Fursaev, EA Bergshoeff, EA Bergshoeff, EA Bergshoeff, G Policastro, GD Moore, H Lü, H Lü, H Lü, J Boer de, J Brown, Jaehoon Jeong, L-Y Hung, L-Y Hung, M Brigante, M Headrick, M Natsuume, M Natsuume, M Rangamani, N Banerjee, N Ogawa, O Hohm, O Mišković, P Breitenlohner, P Calabrese, P Kovtun, P Kovtun, R Olea, RC Myers, RC Myers, S Bhattacharyya, S Deser, S Ryu, S-J Hyun, Sang-Heon Yi, Seungjoon Hyun, T Nishioka, V Balasubramanian, Wooje Jang, Y Kats, Y Kwon   +41 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Spontaneously broken spacetime symmetries and the role of inessential Goldstones

Journal of High Energy Physics, 2017
In contrast to internal symmetries, there is no general proof that the coset construction for spontaneously broken spacetime symmetries leads to universal dynamics.
Remko Klein, Diederik Roest, David Stefanyszyn   +2 more
doaj   +1 more source

Supersymmetric minisuperspace models in self-dual loop quantum cosmology

Journal of High Energy Physics, 2021
In this paper, we study a class of symmetry reduced models of N $$ \mathcal{N} $$ = 1 super- gravity using self-dual variables. It is based on a particular Ansatz for the gravitino field as proposed by D’Eath et al. We show that the essential part of the
K. Eder, H. Sahlmann
doaj   +1 more source

Halo models in modified gravity theories with self-accelerated expansion

, 2012
We investigate the structure of halos in the sDGP (self-accelerating branch of the Dvali-Gavadadze-Porrati braneworld gravity) model and the galileon modified gravity model on the basis of the static and spherically symmetric solutions of the ...
Binney J., Deffayet C., Goubnov D., KAZUHIRO YAMAMOTO, Kimura R., Koyama K., Luty M. A., Nicolis A., RAMPEI KIMURA, TATSUNOSUKE YANO, TATSUYA NARIKAWA   +10 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Spontaneous symmetry breaking in tensor theories

Journal of High Energy Physics, 2019
In this work we study spontaneous symmetry breaking patterns in tensor models. We focus on the patterns which lead to effective matrix theories transforming in the adjoint of U(N).
P. Diaz, J. A. Rosabal
doaj   +1 more source

Probing gluon GTMDs through exclusive coherent diffractive processes

European Physical Journal C: Particles and Fields, 2023
We extend a previous GTMD model to improve the description of the HERA data on diffractive dijet production, and include exclusive coherent diffractive $$J/\psi $$ J / ψ production data.
Daniël Boer, Chalis Setyadi
doaj   +1 more source

MONDified gravity

Physics Letters B, 2023
A new class of modified gravity theories, made possible by subtle features of the canonical formulation of general covariance, naturally allows MOND-like behavior (MOdified Newtonian Dynamics) in effective space-time solutions without introducing new fields. A detailed analysis reveals a relationship with various quantum-gravity features, in particular
Martin Bojowald, Erick I. Duque
openaire   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source