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Program




Registration: Sunday 26th from 18:00 to 21:00 and Monday 27th from 8:30am on.
Conference Opening: Monday 27th at 8:45am


Monday

Tuesday

Wednesd.

Thursday

Friday

8:45:00-9:00

Opening

9:00-10:15

Holzegel

Janik

Yaffe

Donos

Bantilan

10:15-11:00

Craps

Rostworowski

Withers

Buchel

Van der Schee

11:00-11:30

11:30-12:15

Murata

Mateos

Romatschke

Ramallo

Casalderrey-Solana

12:15-13:00

Tian

Ishii

Green

Zilhao

Andrade

13:00-15:00

15:00-15:30

Triana

Hartmann

Excursion

Kunesch

Arean

15:30-16:00

Jansen

Attems

Alsup

Jiménez

16:00-16:30

16:30-17:00

Wu

Pantelidou

Krikun

17:00-17:30

Panosso

Kim

Greenspan

17:30-18:00

Koirala

Jankowski

Nguyen

18:00-18:30

Posters

20:30

Welcome

Banquet




Detailed Program:


Monday 27/06/2016

8:45-9:00

Opening

chair: Matthias Kaminski

9:00-10:15

Holzegel, Gustav

Local and global dynamics in asymptotically AdS spacetimes

10:15-11:00

Craps, Ben

AdS (in)stability: an analytic approach and its interplay with numerics

11:00-11:30

Coffe Break

11:30-12:15

Murata, Keiju

Turbulent strings in AdS/CFT

12:15-13:00

Tian, Yu

Stability and non-equilibrium physics in holography.

13:00-15:00

Lunch

chair: Ben Craps

15:00-15:30

Triana, Miquel

Holographic heavy ion collisions with baryon charge

15:30-16:00

Jansen, Aron

Holographic Thermalization in Nonrelativistic Plasmas

16:00-16:30

Coffe Break

17:00-17:30

Wu, Jackson

Quantum quench in a holographic model of the Kondo effect

16:30-17:00

Panosso Macedo, Rodrigo

Phase diagram of 4D field theories with chiral anomaly from holography

17:30-18:00

Koirala, Roshan

Quasinormal modes of electric and magnetic branes


19:00-20:30

Guided Tour

20:30

Welcome Cocktail



Tuesday 28/06/2016

chair: Julian Sonner

9:00-10:15

Janik, Romuald

Quasinormal modes: from high order hydrodynamics to nonconformal plasma

10:15-11:00

Rostworowski, Andrzej

Current status of AdS instability:.

11:00-11:30

Coffe Break

11:30-12:15

Mateos, David

Towards the string dual of a color superconductor

12:15-13:00

Ishii, Takaaki

Holographic correlation functions out of equilibrium

13:00-15:00

Lunch

chair: Miguel Costa

15:00-15:30

Hartmann, Betti

The influence of the Gauss-Bonnet interaction on the properties of boson stars and hairy black holes

15:30-16:00

Attems, Maximilian

Holographic Heavy Ion Collisions in Non-Conformal Theories

16:00-16:30

Coffe Break

16:30-17:00

Pantelidou, Christiana

Stripes phases in external magnetic field

17:00-17:30

Kim, Keun Young

Homes' law in holographic superconductors

17:30-18:00

Jankowski, Jakub

Relaxation rates and phase transitions

18:00-18:30

Posters



Wednesday 29/06/2016

chair: Michal Spalinski

9:00-10:15

Yaffe, Laurence

Collisions, quasiparticles, and confinement dynamics: holographic lessons and puzzles.

10:15-11:00

Withers, Benjamin

Quenching an electric field in metallic holography

11:00-11:30

Coffe Break

11:30-12:15

Romatschke, Paul

Simulating Yang-Mills in 9+1 dimensions

12:15-13:00

Green, Stephen

Superradiant instabilities of asymptotically AdS black holes

13:00-15:00

Lunch

15:00

Excursion



Thursday 30/06/2016

chair: Martin Ammon

9:00-10:15

Donos, Aristomenis

T.B.A.

10:15-11:00

Buchel, Alex

Beyond adiabatic approximation in Big Bang Cosmology:
hydrodynamics, resurgence and entropy production in the Universe

11:00-11:30

Coffe Break

11:30-12:15

Ramallo, Alfonso V.

Cold holographic matter in top-down models

12:15-13:00

Zilhao, Miguel

Holographic Heavy Ion Collisions in Confining Theories

13:00-15:00

Lunch

chair: Jonathan P. Shock

15:00-15:30

Kunesch, Markus

Black hole instabilities and weak cosmic censorship in higher dimensions

15:30-16:00

Alsup, James

Fermions in a spontaneously generated holographic lattice

16:00-16:30

Coffe Break

16:30-17:00

Krikun, Alexander

Fermions in Helical Background

17:00-17:30

Greenspan, Lauren

Polarised Black Holes in AdS

17:30-18:00

Nguyen, Phuc

Holographic Entanglement Chemistry


20:30

Banquet



Friday 01/07/2016

chair: Pau Figueras

9:00-10:15

Bantilan, Hans

Colliding Black Holes in AdS

10:15-11:00

Van der Schee, Wilke

Evolution of the jet opening angle distribution in holographic plasma

11:00-11:30

Coffe Break

11:30-12:15

Casalderrey Solana, Jorge

Holographic Three-Jet Events in Strongly Coupled N=4 Yang-Mills Plasma

12:15-13:00

Andrade, Tomas

Isotropisation at Finite Coupling

13:00-15:00

Lunch

chair: David Mateos

15:00-15:45

Arean, Daniel

Holographic Noise

15:45-16:30

Jiménez, Amadeo

Time evolution of anomalous currents in holography



Posters

Biasi, Anxo

Modelling Gravitational Collapse in AdS with the Nonlinear Schrödinger Equation

Fernández, Daniel

Far from equilibrium energy flow and entanglement entropy

Paredes, Ángel

A wave interpretation of dark matter to explain galactic offsets

Ren, Rie

Analytic anisotropic solutions for holography

Serantes, Alexandre

Adiabatic Pumping Solutions in AdS


Alphabetical list

Name

Abstract

Alsup, James

Fermions in a spontaneously generated holographic lattice. We discuss fermions in a spontaneously generated holographic lattice background. The lattice structure at the boundary is generated by introducing a higher-derivative interaction term between a U(1) gauge field and a scalar field. We find a critical temperature at which the lattice forms and analyze the band affects on the Fermi surface due to the lattice.

Andrade, Tomas

Isotropisation at Finite Coupling. We determine the leading finite coupling correction to the isotropisation time of strongly coupled N=4 Super Yang-Mills (SYM) plasma. To do so, we study the evolution of small perturbations on top of the far-from-equilibrium dynamics associated with an anisotropic deformation of thermal AdS. The perturbations are sourced by the higher curvature corrections to the Einstein-Hilbert action, which are dual to finite ‘t Hooft coupling corrections of N=4 SYM. By numerically solving the time evolution of the perturbations, we extract the variation of the isotropisation time of the system with respect to the infinite coupling limit. We also perform an analogous analysis in Gauss-Bonnet gravity. This study constitutes the first analysis of finite coupling corrections to the far-from-equilibrium dynamics of strongly coupled gauge theories.

Arean, Daniel

Holographic Noise. I will review recent progress in the introduction of disorder in holography. I will consider disordered holographic superconductors, and brane intersections. In the former case interesting phenomena like a disorder-induced phase transition, and the formation of islands of superconductivity, are observed. The latter system can be of relevance to describe graphene near the Dirac point; in this context we will show encouraging results for the conductivity of the system.

Attems, Maximilian

Holographic Heavy Ion Collisions in Non-Conformal Theories. Ever since fast hydrodynamization has been observed in heavy ion collisions at RHIC, attempts to understand this feature of the very early non-equilibrium stage have been made. We use the gauge/string duality to model the evolution of strongly coupled Quark-Gluon plasma in a non-conformal gauge theory. The non-trivial equation of state and the presence of a time dependent bulk viscosity change the evolution of planar shockwaves. The effect of this non-conformality shows an increase of the relaxation times of the resulting plasma.

Bantilan, Hans

Colliding Black Holes in AdS: The collision of black holes is a classic problem in the strong-field regime of general relativity. In the context of AdS/CFT, this process translates to a statement about the boundary field theory's stress tensor: two compact lumps of energy density approach each other from some initial separation, merge, and relax towards the boundary dual of the final state black hole in the bulk. The main purpose of this talk is to outline the ongoing program to work out the details of this picture, via numerical Cauchy evolution of black hole collisions in AdS. I will begin by motivating this program in terms of the heavy-ion physics it is intended to clarify, then give an overview of the setup, and the generalized harmonic method we use to solve the Einstein field equations with a negative cosmological constant. As a concrete example of these ideas, I will describe recent work to remove all simplifying symmetries in black hole collision simulations on a Poincare patch of AdS.

Buchel, Alex

Unstable horizons and cosmic censorship violation in holography: In holography one encounters horizons which suffer Gregory-Laflamme instability. The dynamical end point of the instability is typically a new equilibrium phase with a nonlinear scalar hair condensate outside the black hole horizon. We review holographic setups where symmetric horizons are unstable, and yet, the suitable equilibrium condensate phase does not exist. We dynamically evolve the simplest model in this exotic class, and show that it leads to violation of cosmic censorship.

Casalderrey Solana, Jorge

Holographic Three-Jet Events in Strongly Coupled N=4 Yang-Mills Plasma. We numerically evolve classical string configurations with non-trivial transverse dynamics in AdS5-Schwarzschild. These strings develop kink-like structures which, via the gauge/gravity duality, can be interpreted as the propagation of hard gluons produced in association with a quark-antiquark pair in a strongly coupled =4 SYM plasma. We observe the appearance of two physically distinct regimes of the in-plasma dynamics, depending on whether the medium is able to resolve the transverse structure of the string prior to its total quench. From these studies we extract the medium resolution scale of the strongly coupled SYM plasma, defined as the smallest angular separation between two jets that the medium can resolve.

Craps, Ben

AdS (in)stability: an analytic approach and its interplay with numerics. Numerical work suggests that certain scalar perturbations of AdS of arbitrarily small amplitude $\epsilon$ can form black holes in times of order $1/\epsilon^2$, but that non-collapsing initial data also exist. An analytic approach has emerged from the resummation of secular terms in perturbation theory, leading to effective flow equations governing the dynamics up to times of order $1/\epsilon^2$ (unless nonlinearities become too strong before that time). This approach has led to the discovery of selection rules and conservation laws on the relevant timescales. In combination with numerical work, it is also used in attempts to understand better the onset of instability.

Donos, Aristomenis

T.B.A.

Ramallo, Alfonso V.

Cold holographic matter in top-down models.

I  will discuss several  holographic models of cold matter in terms of D-brane intersections. We will analyze the different regimes of the collective excitations of these systems as a function of the temperature and, in particular, their zero-sound and diffusion modes, with the aim of determining the universal properties of this kind of holographic matter.

Green, Stephen

Superradiant instabilities of asymptotically AdS black holes. Asymptotically AdS spacetimes with reflecting boundary conditions represent a natural setting for studying superradiant instabilities of rotating or charged black holes. In the first part of this talk, I prove that all asymptotically AdS black holes with ergoregions in dimension d ≥ 4 are linearly unstable to gravitational perturbations. This proof uses the canonical energy method of Hollands and Wald in a WKB limit. In the second part of the talk, I consider a charged Reissner-Nordstrom-AdS black hole---which is superradiantly unstable to charged scalar field perturbations at the linear level---and study the full *nonlinear* evolution of the instability. In this special case, the instability occurs even for spherically symmetric perturbations, which simplifies the analysis and allows for the use of numerical general relativity simulations. Our results show that nonlinear backreaction causes the black hole to lose charge and mass to the scalar field as the instability proceeds. Eventually, higher scalar field harmonics become nonsuperradiant, and they are reabsorbed into the black hole. The final state is described by a “hairy” black hole, surrounded by a scalar condensate in the fundamental (lowest) mode. I discuss implications of this work on the original problem of the rotating black hole superradiant instability.

Greenspan, Lauren

Polarised Black Holes in AdS. I will discuss solutions of Einstein-Maxwell theory with a negative cosmological constant that asymptote to global $AdS_4$ with a dipolar electrostatic potential turned on at infinity. The potential gives rise to two new geometries: an $AdS$ soliton that includes the full backreaction of the electric field on the $AdS$ geometry, and a neutral black hole that is deformed by the electric field. Boundary data such as the charge density and stress tensor, as well as black hole horizon quantities will be presented. The free energies of the black hole and soliton phases give rise to a phase diagram that generalizes the Hawking-Page phase transition, with the soliton dominating the low temperature phase and the black hole dominating the high temperature phase. Coupling this geometry to a scalar field allows us to construct the supergravity duals to ABJM theory, providing a nontrivial example of the gauge/gravity duality.

Hartmann, Betti

The influence of the Gauss-Bonnet interaction on the properties of boson stars and hairy black holes. The Gauss-Bonnet (GB) term contains the curvature tensors in quadratic order and appears e.g as the first correction to the Einstein-Hilbert action in the low energy effective action of certain String Theories. In contrast to other extensions of General Relativity, the addition of the Gauss-Bonnet term does not alter the degrees of freedom - the equations describing the dynamics of the gravitational field remain second order. However, the Gauss-Bonnet contribution leads to a modification of these equations only in space-time dimensions larger than four. In this talk, I will describe how the properties of solutions to gravity-scalar field models change when taking the Gauss-Bonnet term into account. I will discuss globally regular solutions in the form of so-called boson stars as well as black holes which carry scalar hair on their horizon. In all cases, these solutions have to be constructed numerically by solving systems of coupled non-linear differential equations.

Holzegel, Gustav

Local and global dynamics in asymptotically AdS spacetimes.
I will review some mathematical results for asymptotically AdS spacetimes regarding 1) well-posedness 2) dynamical (in)stability and 3) unique continuation properties. The talk will include a discussion of the spherically symmetric non-linear Einstein-Klein-Gordon system, decay estimates for linear wave equations on AdS-black hole spacetimes and the problem of unique continuation from the boundary for the Einstein equations.

Ishii, Takaaki

Holographic correlation functions out of equilibrium. In applications of holography, it is important to deal with time dependent systems which require to be solved with numerics. In time dependent setups, correlation functions need to be computed in real time formalism. Based on the linear response theory, we introduce a numerical method to compute real time Green's functions holographically in out of equilibrium systems in which temperature changes. The idea is to make use of pulse sources to obtain retarded Green's functions, and we practically realize such computations in holography. As time frequency analysis, time dependent spectral function is obtained from the real time data, and difference in near and non adiabatic changes of the system is studied. We firstly demonstrate our numerical implementation in one of the simplest holographic models, but we also discuss generalization to other systems.

Janik, Romuald

Quasinormal modes: from high order hydrodynamics to nonconformal plasma: In this talk I will review the various contexts in which quasi-normal modes make their appearance ranging from a kind of `UV completion' of hydrodynamics to much more applied situations where they provide a limitation on the applicability of hydrodynamics or can be used as real additional degrees of freedom relevant away from equilibrium.

Jankowski, Jakub

Relaxation rates and phase transitions. Using a bottom-up gauge gravity constructions, relaxation rates of strongly coupled field theories are computed. A variety of phase structures are considered, from a crossover up to a first order phase transition. It is established that near the transition the applicability of a hydrodynamic description breaks down at lower momenta than in the conformal case. In the case of the first order phase transition, a spinodal region appears at temperatures for which the speed of sound squared is negative. An estimate of the preferential scale attained by the unstable modes is also given. Additionally we observe a novel diffusive regime for sound modes over a range of wavelengths.

Jansen, Aron

Holographic Thermalization in Nonrelativistic Plasmas. Nonrelativistic plasmas can be described holographically as asymptotically Lifshitz black holes. In this talk I will show how the framework of characteristic evolution can be extended to these spacetimes. We study the simplest case of isotropization in a d-dimensional homogeneous plasma with dynamical scaling exponent z. We find stable evolution and equilibration times that exhibit small dependence of z and are of the order of the inverse temperature. Performing a quasinormal mode analysis we find a corresponding narrow range of relaxation times, fully characterized by the fraction z/(d-1). For z>=d-1, equilibration is overdamped, whereas for z

Jiménez, Amadeo

Time evolution of anomalous currents in holography. We consider the time evolution of the so called Chiral Magnetic Effect and associated features for strongly coupled systems with axial anomaly at finite temperature. Concretely we are interested in dynamically generating axial charge and looking at the real time response of the system in presence of external electromagnetic fields. We accomplish this via holography. This setup requires solving PDE's which we do using pseudo-spectral methods in space directions and implicit/pseudo-spectral methods in time direction.

Kim, Keun Young

Homes' law in holographic superconductors. Homes’ law is an empirical law for high-temperature and conventional superconductors. The law states that, for various superconductors, there is a "universal" relation between the superfluid density (\rho_s) at near zero temperature and the transition temperature (T_c) multiplied by the electric DC conductivity (\sigma_DC) in a normal state right above the transition temperature T_c. i.e. \rho_s(T=0) = C \sigma DC(T_c)*T_c, where C is a "universal" constant. We study this universal law in holographic superconductor models with momentum relaxation by numerical holography.

Koirala, Roshan

Quasinormal modes of electric and magnetic branes. In this presentation I will explain the quasinormal modes of the electric and magnetic branes. Holographically they are dual to the quark gluon plasma system subjected to the external electric and magnetic field. At the end I will show some possible connection to the experimental results from RHIC/LHC.

Krikun, Alexander

Fermions in Helical Background. We study the fermion Green function and the density of states in the holographic model with the translation symmetry breaking realized by the Bianchy VII helix. For the fermion propagating along the helical axis the equations of motion reduce to the relatively simple ODEs. We study the evolution of the spectral function while the background is tuned from the metallic all the way to the deep insulating phase. This allows us to get an insight about the nature of the insulating regime. Interestingly, the helix defines a preferred chirality, therefore due to the "spin-helix" interaction the splitting of the fermion spectral function occurs.

Kunesch, Markus

Black hole instabilities and weak cosmic censorship in higher dimensions. In this seminar I will present the results of fully nonlinear numerical simulations of black rings and Myers-Perry black holes in five and six dimensions. Most importantly, the endpoint of the Gregory-Laflamme instability of very thin rings provides the first concrete evidence that the weak cosmic censorship conjecture can be violated in five dimensional asymptotically flat spacetimes. Furthermore, we have discovered a new instability in black rings which stretches the ring without substantially changing its thickness. This instability completely dominates the evolution for rings of intermediate thickness and always leads to the collapse to a black hole of spherical topology. For very thin rings the Gregory-Laflamme instability becomes dominant and eventually gives the ring a fractal structure of bulges connected by necks which become ever thinner over time. I will argue that this suggests that very thin black rings break and hence violate weak cosmic censorship.

Mateos, David

Towards the string dual of a color superconductor. Certain phases of QCD at finite baryon density exhibit color superconductivity, namely the spontaneous breaking of the gauge group. We present the construction of string duals of strongly coupled gauge theories that exhibit the same phenomenon.

Murata, Keiju

Turbulent strings in AdS/CFT. We study nonlinear dynamics of the flux tube between an external quark-antiquark pair in N=4 super Yang-Mills theory using the AdS/CFT duality. In the gravity side, the flux tube is realized by a fundamental string whose endpoints are attached to the AdS boundary. We perturb the endpoints in various ways and numerically compute the time evolution of the nonlinearly oscillating string. As a result, cusps can form on the string, accompanied by weak turbulence and power law behavior in the energy spectrum. We also find that, with sufficiently strong perturbations, the string continues extending and plunges into the Poincare horizon. In the evolution, effective horizons are also dynamically created on the string worldsheet. The quark and antiquark are thus causally disconnected, and the string transitions to two straight strings.

Nguyen, Phuc

Holographic entanglement chemistry. We use the Iyer-Wald formalism to derive an extended first law of entanglement that includes variations in the cosmological constant, Newton's constant and --in the case of higher derivative theories-- all the additional couplings of the theory. In Einstein gravity, where the number of degrees of freedom N2 of the dual field theory is a function of Λ and G, our approach allows us to vary N keeping the field theory scale fixed or to vary the field theory scale keeping N fixed. We also derive an extended first law of entanglement for Gauss-Bonnet and Lovelock gravity.

Panosso, Macedo Rodrigo

Phase diagram of 4D field theories with chiral anomaly from holography. Within gauge/gravity duality, we study the class of four dimensional CFTs with chiral anomaly described by Einstein-Maxwell-Chern-Simons theory in five dimen- sions. In particular we determine the phase diagram at finite temperature, chemical po- tential and magnetic field. At high temperatures the solution is given by an electrically and magnetically charged AdS Reissner-Nordstroem black brane. For sufficiently large Chern-Simons coupling and at sufficiently low temperatures and small magnetic fields, we find a new phase with helical order, breaking translational invariance spontaneously. For the Chern-Simons couplings studied, the phase transition is second order with mean field exponents. Since the entropy density vanishes in the limit of zero temperature we are confident that this is the true ground state which is the holographic version of a chiral magnetic spiral.

Pantelidou, Christiana

Stripes phases in external magnetic field.
At finite external magnetic field certain holographic models exhibit spontaneous breaking of translational invariance resulting in an inhomogeneous phase. In this talk, I will report results on the construction of black holes dual to a holographic magnetic striped phase and I will discuss some of the properties of these solutions.

Romatschke, Paul

Simulating Yang-Mills in 9+1 dimensions.
Gauge/Gravity Duality is most often applied to study strongly coupled field theory systems through weakly coupled gravity. However, real time lattice simulations of weakly coupled field theories offer a possibly interesting window into strongly coupled string theory in 10 dimensions. In this talk I will review the current status of the field and present new results for the black hole/black string transitions from a new classical Yang-Mills simulation package called "Katla".

Rostworowski, Andrzej

Current status of AdS instability.
I will discuss the dynamics of asymptotically AdS spacetimes from General Relativity perspective. In particular I will present old arXiv:1104.3702 and more recent arXiv:1506.03519 evidence for the instability of AdS space against gravitational collapse of arbitrarily small initial perturbations. The later was enabled by a powerful resonant approximation suggested in arXiv:1403.6471 and thoroughly developed in arXiv:1407.6273. On the other hand the negative cosmological constant allows for the existence of stable, time-periodic, asymptotically AdS solutions of Einstein equations arXiv:1303.3186.

Tian, Yu


Stability and non-equilibrium physics in holography.
Nowaday experiments have achieved powerful, controllable manipulations of various quantum many-body systems, such as Bose-Einstein condensate in cold atom systems, quark-gluon plasma in high energy colliders, etc. However, general theories that can deal with these systems are still lacking, especially in the finite temperature, far-from-equilibrium and strong coupling regions. Hopefully, AdS/CFT provides such a theoretical framework to touch the rich physics in these systems. In this talk, I will focus on the stability and non-equilibrium aspects of the holographic appoach, under either homogeneous or inhomogeneous configurations.

Triana, Miquel

Holographic heavy ion collisions with baryon charge. Shock wave collisions in AdS space have provided compelling holographic toy-models for heavy ion collisions and the evolution of the resulting quark-gluon plasma. The inclusion of an electromagnetic field in the gravitational set-up gives raise to a conserved current in the dual gauge theory, which can be used as a toy model for the baryonic charge. In this project we present the first holographic collisions including this conserved current.

van der Schee, Wilke

Evolution of the jet opening angle distribution in holographic plasma. Jets are particularly interesting probes to study the formation and evolution of quark-gluon plasma, as created in heavy ion collisions. In this talk I will briefly review attempts to describe the jet evolution in holography, and will argue that essential progress can be made by studying also the substructure of the jet, such as the evolution of the opening angle. Paying particular attention to the numerics involved, I will illustrate this evolution in a simple holographic model, where we start with energy and angular distributions from pQCD. We identify two competing effects: (1) all individual jets become wider, and (2) the distribution of final jets becomes narrower, since narrow jets suffer less energy loss and are thereby more likely to survive. Both effects can be visible in experimental data.

Withers, Benjamin

Quenching an electric field in metallic holography. Recently there has been some interest in the transport properties of holographic models with explicitly sourced inhomogeneities. In these models momentum is not conserved and relaxes to zero exponentially fast in the laboratory frame. I will present the results of an electric field quench in one such model of momentum relaxation at nonzero charge density. I will discuss the nonlinear DC conductivity by quenching to a constant electric field, where in general Joule heating is significant. I will also detail the relaxation back to equilibrium after the electric field is turned off, as governed by a set of vector QNMs. This QNM spectrum depends on a parameter controlling the strength of inhomogeneity which, when dialled to an incoherent regime, encodes a qualitative change in the relaxation of the heat current.

Wu, Jackson

Quantum quench in a holographic model of the Kondo effect. We study the dynamics of quantum quench in Kondo systems using gauge-gravity duality through a holographic Kondo model.

Yaffe, Laurence

Collisions, quasiparticles, and confinement dynamics: holographic lessons and puzzles. The advent of holography has enabled much progress in understanding dynamics in strongly coupled gauge theories. This talk will highlight several questions and puzzles involving collisions of localized shocks resembling heavy ion collisions, quasiparticles in strongly coupled theories, and confinement dynamics in the large N limit. .

Zilhao, Miguel

Holographic Heavy Ion Collisions in Confining Theories. Understanding the dynamics of out-of-equilibrium matter in strongly coupled systems is an important and challenging problem in theoretical physics. A particularly interesting example is the Quark-Gluon Plasma formed in relativistic colliders such as RHIC or the LHC, which motivates the study of the relaxation process in strongly coupled non-abelian field theories. An interesting question in this vein is how the presence of a confinement scale affects the relaxation process of such strongly coupled gauge theories. We use holography to map the thermalisation of a confining model to a gravitational system, namely an AdS-soliton model, and study the effect of confinement in the evolution of the system.