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We compute the spectrum of photons emitted by the finite-temperature large-N SU(N) ${\cal {N}}=4$ supersymmetric Yang-Mills plasma coupled to electromagnetism, at strong yet finite 't Hooft coupling. We work in the holographic dual…

High Energy Physics - Theory · Physics 2013-05-30 Babiker Hassanain , Martin Schvellinger

We study R-charge transport in a wide class of strongly-coupled supersymmetric plasmas at finite temperature with 't Hooft coupling corrections. To achieve this, we use the gauge/string duality and include the full set of order(\alpha'^3)…

High Energy Physics - Theory · Physics 2011-03-28 Babiker Hassanain , Martin Schvellinger

We compute finite 't Hooft coupling corrections to observables related to charged quantities in a strongly coupled $\mathcal{N}=4$ supersymmetric Yang-Mills plasma. The coupling corrected equations of motion of gauge fields are explicitly…

High Energy Physics - Theory · Physics 2018-08-01 Sebastian Waeber , Andreas Schäfer

We investigate the thermalization time scale in the planar limit of the SU(N) N=4 SYM plasma at strong yet finite 't Hooft coupling by considering its supergravity dual description, including the full O(alpha'^3) type IIB string theory…

High Energy Physics - Theory · Physics 2015-06-15 Walter H. Baron , Martin Schvellinger

We use the AdS/CFT conjecture to investigate the thermalization of large-N_c N=4 Super Yang-Mills plasma in the limit of large but finite 't Hooft coupling. On the gravity side, we supplement the type IIB supergravity action by the full set…

High Energy Physics - Phenomenology · Physics 2015-06-11 Dominik Steineder , Stefan A. Stricker , Aleksi Vuorinen

By studying the effect of the order(\alpha'^3) string theory corrections to type IIB supergravity, including those corrections involving the Ramond-Ramond five-form field strength, we obtain the corrected equations of motion of an Abelian…

High Energy Physics - Theory · Physics 2010-04-30 Babiker Hassanain , Martin Schvellinger

We compute the correction to the photon emission rate in first order of shear components of fluid velocity gradients, $\sigma_{ij}$, in near-equilibrium hydrodynamic plasma at strong coupling regime, using the real-time Schwinger-Keldysh…

Nuclear Theory · Physics 2015-04-28 Kiminad A. Mamo , Ho-Ung Yee

The free energy of the maximally supersymmetric SU(N) gauge theory at temperature T is expected to scale, in the large N limit, as N^2 T^4 times a function of the 't Hooft coupling, f(g_{YM}^2 N). In the strong coupling limit the free…

High Energy Physics - Theory · Physics 2009-09-17 Steven S. Gubser , Igor R. Klebanov , Arkady A. Tseytlin

We perform a direct test of the gauge-gravity duality associated with the system of N D0-branes in type IIA superstring theory at finite temperature. Based on the fact that higher derivative corrections to the type IIA supergravity action…

High Energy Physics - Theory · Physics 2009-06-30 Masanori Hanada , Yoshifumi Hyakutake , Jun Nishimura , Shingo Takeuchi

We present a detailed study on the influence of strong electron-phonon coupling to the photoemission spectra of lead. Representing the strong-coupling regime of superconductivity, the spectra of lead show characteristic features that…

Superconductivity · Physics 2009-11-10 F. Reinert , B. Eltner , G. Nicolay , D. Ehm , S. Schmidt , S. Huefner

We study non-planar corrections in two special $\mathcal N=2$ superconformal $SU(N)$ gauge theories that are planar-equivalent to $\mathcal N=4$ SYM theory: two-nodes quiver model with equal couplings and $\mathcal N=2$ vector multiplet…

High Energy Physics - Theory · Physics 2023-06-07 M. Beccaria , G. P. Korchemsky , A. A. Tseytlin

Finite 't Hooft coupling corrections to multiple physical observables in strongly coupled $N=4$ supersymmetric Yang-Mills plasma are examined, in an attempt to assess the stability of the expansion in inverse powers of the 't Hooft coupling…

High Energy Physics - Theory · Physics 2016-01-20 Sebastian Waeber , Andreas Schaefer , Aleksi Vuorinen , Laurence G. Yaffe

We use holographic methods to show that photons emitted by a strongly coupled plasma subject to a magnetic field are linearly polarized regardless of their four-momentum, except when they propagate along the field direction. The…

High Energy Physics - Theory · Physics 2025-11-17 Daniel Ávila , Tonantzin Monroy , Francisco Nettel , Leonardo Patiño

Photoemission spectra for the isotropic two-leg t-J ladder are calculated at various hole-doping levels using exact diagonalization techniques. Low-energy sharp features caused by short-range antiferromagnetic correlations are observed at…

Condensed Matter · Physics 2016-08-31 Stephan Haas , Elbio Dagotto

Two-particle spectroscopy with correlated electron pairs is used to establish the causal link between the secondary electron spectrum, the $(\pi+\sigma)-$plasmon peak and the unoccupied band structure of highly oriented pyrolitic graphite.…

As a continuation of the study (in arXiv:2102.07696 and arXiv:2104.12625) of strong-coupling expansion of non-planar corrections in $\mathcal N=2$ 4d superconformal models we consider two special theories with gauge groups $SU(N)$ and…

High Energy Physics - Theory · Physics 2022-07-28 M. Beccaria , G. V. Dunne , A. A. Tseytlin

We extend our holographic analysis of the emission of photons by a strongly coupled plasma subject to a very intense external magnetic field. We previously showed that in a particular model, any photon produced by the plasma had to be in…

High Energy Physics - Theory · Physics 2023-03-17 Daniel Ávila , Francisco Nettel , Leonardo Patiño

It has recently been observed that IIB string theory in the pp-wave background can be used to calculate certain quantities, such as the dimensions of BMN operators, as exact functions of the effective coupling lambda' = lambda/J^2. These…

High Energy Physics - Theory · Physics 2009-11-07 Igor R. Klebanov , Marcus Spradlin , Anastasia Volovich

In the presence of (approximately conserved) axial charge in the QCD plasma at finite temperature, the emitted photons are spin-aligned, which is a unique P- and CP-odd signature of axial charge in the photon emission observables. We…

High Energy Physics - Phenomenology · Physics 2016-04-12 Kiminad A. Mamo , Ho-Ung Yee

Gauge theory-string theory duality describes strongly coupled N=4 supersymmetric SU(n) Yang-Mills theory at finite temperature in terms of near extremal black 3-brane geometry in type IIB string theory. We use this correspondence to compute…

High Energy Physics - Theory · Physics 2016-09-06 Paolo Benincasa , Alex Buchel
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