294 citations · 2.6k across the 48 of their papers we have counts for
42 papers · 1 filter
symmetric gravity and finite coupling holography
Umut Gürsoy, Pedro Vicente Marto, Edwan Préau
We construct asymptotically AdS black brane solutions in a theory of gravity with an infinite series of curvature corrections. The action is based on an symmetric ansa…
Perturbing a quantum black hole
Casey Cartwright, Umut Gürsoy, Juan F. Pedraza +1
We analyze the analytic structure of correlators in the field theory dual to the quantum Bañados-Teitelboim-Zanelli (qBTZ) black hole, a braneworld model incorporating exact backre…
A supersymmetric spin current
Casey Cartwright, Domingo Gallegos, Umut Gürsoy +2
We study the supersymmetric structure of the spin current in four dimensional supersymmetric theories. By coupling the stress tensor multiplet to a vierbein multipl…
Holographic transport in anisotropic plasmas
Tuna Demircik, Domingo Gallegos, Umut Gürsoy +2
We study energy-momentum and charge transport in strongly interacting holographic quantum field theories in an anisotropic thermal state by contrasting three different holographic…
Universal rapidity scaling of entanglement entropy inside hadrons from conformal invariance
Umut Gürsoy, Dmitri E. Kharzeev, Juan F. Pedraza
When a hadron is probed at high energy, a nontrivial quantum entanglement entropy inside the hadron emerges due to the lack of complete information about the hadron wave function e…
Holographic entanglement as nonlocal magnetism
Umut Gürsoy, Juan F. Pedraza, Guim Planella Planas
The Ryu-Takayanagi prescription can be cast in terms of a set of microscopic threads that help visualize holographic entanglement in terms of distillation of EPR pairs. While this…
Hydrodynamics, spin currents and torsion
A. D. Gallegos, U. Gursoy, A. Yarom
We construct the canonical constitutive relations for a fluid description of a system with a spin current, valid in an arbitrary number of dimensions in the absence of parity break…
Analytic long-lived modes in charged critical plasma
Umut Gursoy, Matti Järvinen, Giuseppe Policastro +1
Fluctuations around critical behavior of a holographic charged plasmas are investigated by studying quasi-normal modes of the corresponding black branes in 5D Einstein-Maxwell-Dila…
Thermodynamics and transport of holographic nodal line semimetals
Ronnie Rodgers, Enea Mauri, Umut Gürsoy +1
We study various thermodynamic and transport properties of a holographic model of a nodal line semimetal (NLSM) at finite temperature, including the quantum phase transition to a t…
Quasi-normal modes of a strongly coupled non-conformal plasma and approach to criticality
Panagiotis Betzios, Umut Gürsoy, Matti Järvinen +1
We study fluctuations around equilibrium in a class of strongly interacting non-conformal plasmas using holographic techniques. In particular we calculate the quasi-normal mode spe…
Strongly-coupled anisotropic gauge theories and holography
Dimitrios Giataganas, Umut Gürsoy, Juan F. Pedraza
We initiate a non-perturbative study of anisotropic, non-conformal and confining gauge theories that are holographically realized in gravity by generic Einstein-Axion-Dilaton syste…
Holographic QCD in the Veneziano limit at finite Magnetic Field and Chemical Potential
Umut Gursoy, Matti Jarvinen, Govert Nijs
We investigate the phase diagram of QCD-like gauge theories at strong coupling at finite magnetic field , temperature and baryon chemical potential using the improved ho…
Matrix Quantum Mechanics on
Panagiotis Betzios, Umut Gürsoy, Olga Papadoulaki
We study Matrix Quantum Mechanics on the Euclidean time orbifold . Upon Wick rotation to Lorentzian time and taking the double-scaling limit this theory provides…
Inverse Magnetic Catalysis from improved Holographic QCD in the Veneziano limit
Umut Gürsoy, Ioannis Iatrakis, Matti Järvinen +1
We study the dependence of the chiral condensate on external magnetic field in the context of holographic QCD at large number of flavors. We consider a holographic QCD model where…
Holographic equilibration in confining gauge theories under external magnetic fields
Tuna Demircik, Umut Gursoy
We investigate the effect of external magnetic fields on equilibration in the improved holographic QCD theory in the deconfined phase using the AdS/CFT correspondence. In particula…
A new dynamical instability in Anti-de-Sitter spacetime
Umut Gürsoy, Aron Jansen, Wilke van der Schee
We present fully dynamical solutions to Einstein-scalar theory in asymptotically Anti-de-Sitter spacetime with a scalar potential containing particularly rich physics. Depending on…
Holographic Equilibration of Nonrelativistic Plasmas
Umut Gürsoy, Aron Jansen, Watse Sybesma +1
We study far-from-equilibrium physics of strongly interacting plasmas at criticality and zero charge density for a wide range of dynamical scaling exponents z in d dimensions using…
Electromagnetic response of interacting Weyl semimetals
V. P. J. Jacobs, Panagiotis Betzios, Umut Gursoy +1
We study the electromagnetic properties of Weyl semimetals with strong interactions. Focusing on a single Weyl cone in the band structure, we induce strong interactions by coupling…
Late time behavior of non-conformal plasmas
Umut Gursoy, Matti Jarvinen, Giuseppe Policastro
We determine analytically the dependence of the approach to thermal equilibrium of strongly coupled plasmas on the breaking of scale invariance. The theories we consider are the ho…
Thermodynamics and CP-odd transport in Holographic QCD with Finite Magnetic Field
Tara Drwenski, Umut Gursoy, Ioannis Iatrakis
We consider a bottom-up holographic model of QCD at finite temperature T and magnetic field B, and study dependence of thermodynamics and CP-odd transport on these variables. As th…
Horizon universality and anomalous conductivities
Umut Gursoy, Javier Tarrio
We show that the value of chiral conductivities associated with anomalous transport is universal in a general class of strongly coupled quantum field theories. Our result applies t…
(Non)renormalization of Anomalous Conductivities and Holography
Umut Gursoy, Aron Jansen
The chiral magnetic and the chiral vortical effects are recently discovered phenomena arising from chiral gauge and gravitational anomalies that lead to generation of electric curr…
Instabilities near the QCD phase transition in the holographic models
Umut Gursoy, Shu Lin, Edward Shuryak
The paper discusses phenomena close to the critical QCD temperature, using the holographic model. One issue studied is the overcooled high-T phase, in which we calculate quasi norm…
The Chern-Simons Diffusion Rate in Improved Holographic QCD
Umut Gursoy, Ioannis Iatrakis, Elias Kiritsis +2
In (3+1)-dimensional SU(Nc) Yang-Mills (YM) theory, the Chern-Simons diffusion rate, Gamma_{CS}, is determined by the zero-momentum, zero-frequency limit of the retarded two-point…