Results 11 to 20 of about 5,897 (119)

Unitarity Entropy Bound: Solitons and Instantons

Fortschritte der Physik, Volume 69, Issue 1, January 2021., 2021
Abstract We show that non‐perturbative entities such as solitons and instantons saturate bounds on entropy when the theory saturates unitarity. Simultaneously, the entropy becomes equal to the area of the soliton/instanton. This is strikingly similar to black hole entropy despite absence of gravity. We explain why this similarity is not an accident. We
Gia Dvali
wiley   +1 more source

An Effective Model for Glueballs and Dual Superconductivity at Finite Temperature

Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
The glueballs lead to gluon and QCD monopole condensations as by‐products of color confinement. A color dielectric function G(∣ϕ∣) coupled with a Abelian gauge field is properly defined to mediate the glueball interactions at confining regime after spontaneous symmetry breaking (SSB) of the gauge symmetry. The particles are expected to form through the
Adamu Issifu, Francisco A. Brito, Edward Sarkisyan Grinbaum   +2 more
wiley   +1 more source

Holographic Description of Noncommutative Schwinger Effect

Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
We consider the phenomenon of spontaneous pair production in the presence of an external electric field for noncommutative Yang‐Mills theories. Using Maldacena’s holographic conjecture, the threshold electric field for pair production is computed from the quark/antiquark potential for noncommutative theories.
Udit Narayan Chowdhury, Michele Arzano
wiley   +1 more source

Center Vortices, Nexuses, and the Georgi-Glashow Model [PDF]

, 1999
In a gauge theory with no Higgs fields the mechanism for confinement is by center vortices, but in theories with adjoint Higgs fields and generic symmetry breaking, such as the Georgi-Glashow model, Polyakov showed that in d=3 confinement arises via a ...
A. Linde, A. M. Polyakov, A. M. Polyakov, E. T. Tomboulis, E. T. Tomboulis, F. Eberlein, G. Alexanian, G. Mack, G. Mack, G. Mack, G. ’t Hooft, G. ’t Hooft, H. B. Nielsen, J. Ambjørn, J. Ambjørn, J. Ambjørn, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. M. Cornwall, J. Papvassiliou, J. Papvassiliou, John M. Cornwall, K. Langfeld, L. Del Debbio, L. Del Debbio, L. G. Yaffe, M. C. Ogilvie, M. Engelhardt, M. Faber, M. Faber, N. J. Watson, S. Mandelstam, T. G. Kovács, T. G. Kovács, T. G. Kovács, T. Suzuki, W. Buchmüller, W. Buchmüller, Y. Nambu   +47 more
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Chaos and the reparametrization mode on the AdS2 string

Journal of High Energy Physics, 2023
We study the holographic correlators corresponding to scattering of fluctuations of an open string worldsheet with AdS2 geometry. In the out-of-time-order configuration, the correlators display a Lyapunov growth that saturates the chaos bound.
Simone Giombi, Shota Komatsu, Bendeguz Offertaler   +2 more
doaj   +1 more source

Wilson loops in circular quiver SCFTs at strong coupling

Journal of High Energy Physics, 2021
We study circular BPS Wilson loops in the N $$ \mathcal{N} $$ = 2 superconformal n-node quiver theories at large N and strong ’t Hooft coupling by using localization.
Hao Ouyang
doaj   +1 more source

d dimensional SO(d)-Higgs Models with Instanton and Sphaleron: d=2,3 [PDF]

, 1999
The Abelian Higgs model and the Georgi-Glashow model in 2 and 3 Euclidean dimensions respectively, support both finite size instantons and sphalerons. The instantons are the familiar Nielsen-Oleson vortices and the 't Hooft-Polyakov monopole solutions ...
A.A. Belavin, A.I. Bochkarev, A.M. Polyakov, A.M. Polyakov, A.N. Kuznetsov, B. Julia, B. Kleihaus, B.M.A.G. Piette, D. H. Tchrakian, D. Ó Sé, E. Mottola, E.M. Chudnovsky, F. Zimmerschied, F. Zimmerschied, F.R. Klinkhamer, G. ’t Hooft, G. ’t Hooft, G.M. O’Brien, H.B. Nielsen, I. Affleck, I. Affleck, I. Affleck, J. Kunz, J.-Q. Liang, K. Arthur, K. Sundermeyer, L. Carson, L. G. Yaffe, N.S. Manton, N.S. Manton, P. Forgács, P.M. Saffin, S. Habib, S.Yu. Khlebnikov, T. Akiba, V.V. Matveev, Y. Brihaye, Zh-Q. Ma, Zh-Q. Ma   +38 more
core   +2 more sources

Conformal constraints on defects

Journal of High Energy Physics, 2020
In this paper we study the constraints imposed by conformal invariance on extended objects a.k.a. defects in a conformal field theory. We identify a particularly nice class of defects that is closed under conformal transformations.
Abhijit Gadde
doaj   +1 more source

The Polyakov Loop of Anti-symmetric Representations as a Quantum Impurity Model [PDF]

, 2011
The Polyakov loop of an operator in the anti-symmetric representation in N=4 SYM theory on spacial R^3 is calculated, to leading order in 1/N and at large 't Hooft coupling, by solving the saddle point equations of the corresponding quantum impurity ...
A. A. Abrikosov, G. W. Semeno, H. Bruus, I. S. Gradshteyn, Wolfgang Mück   +4 more
core   +2 more sources

Domain Walls and Metastable Vacua in Hot Orientifold Field Theories [PDF]

, 2010
We consider "Orientifold field theories", namely SU(N) gauge theories with Dirac fermions in the two-index representation at high temperature. When N is even these theories exhibit a spontaneously broken Z2 centre symmetry. We study aspects of the domain
A Armoni, A Armoni, A Armoni, A Armoni, A Patella, Adi Armoni, Agostino Patella, C Korthals-Altes, Chris P. Korthals Altes, CP Korthals Altes, G ’t Hooft, IY Kobzarev, L Debbio Del, LG Yaffe, M Unsal, O Aharony, O Machtey, P Giovannangeli, P Giovannangeli, R Jackiw, SR Coleman, T Bhattacharya, T Bhattacharya   +22 more
core   +2 more sources