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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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43 papers · 2 filters
Far-from-equilibrium energy flow and entanglement entropy
Eugenio Megias
The time evolution of the energy transport triggered in a strongly coupled system by a temperature gradient is holographically related to the evolution of an asymptotically AdS bla…
Yukawa couplings in F-theory as D-brane instanton effects
Andres Collinucci, Iñaki García-Etxebarria
In a weak coupling limit the neighborhood of Yukawa points in GUT F-theory models is described by a non-resolvable orientifold of the conifold. We explicitly show, fi…
Quantum Quenches in a Holographic Kondo Model
Johanna Erdmenger, Mario Flory, Max-Niklas Newrzella +2
We study non-equilibrium dynamics and quantum quenches in a recent gauge/gravity duality model for a strongly coupled system interacting with a magnetic impurity with spin.…
S-duality in orientifold SCFTs
Iñaki García-Etxebarria, Ben Heidenreich
We present a general solution to the problem of determining all S-dual descriptions for a specific (but very rich) class of SCFTs. These SCFTs are indexed by deco…
Two-point Functions in a Holographic Kondo Model
Johanna Erdmenger, Carlos Hoyos, Andy O'Bannon +3
We develop the formalism of holographic renormalization to compute two-point functions in a holographic Kondo model. The model describes a -dimensional impurity spin of a ga…
Ubiquity of non-geometry in heterotic compactifications
Iñaki García-Etxebarria, Dieter Lust, Stefano Massai +1
We study the effect of quantum corrections on heterotic compactifications on elliptic fibrations away from the stable degeneration limit, elaborating on a recent observation by Mal…
Aharonov-Bohm protection of black hole's baryon/skyrmion hair
Gia Dvali, Alexander Gußmann
The baryon/skyrmion correspondence implies that the baryon number is encoded into a topological surface integral. Under certain conditions that we clarify, this surface integral ca…
The Asymmetric CFT Landscape in D=4,6,8 with Extended Supersymmetry
Ralph Blumenhagen, Michael Fuchs, Erik Plauschinn
We study asymmetric simple-current extensions of Gepner models in dimensions with at least eight supercharges in the right-moving sector. The models obtained in an extens…
Conductivities from attractors
Johanna Erdmenger, Daniel Fernandez, Prieslei Goulart +1
In the context of applications of the AdS/CFT correspondence to condensed matter physics, we compute conductivities for field theory duals of dyonic planar black holes in 3+1-dimen…
Holographic Kondo and Fano Resonances
Johanna Erdmenger, Carlos Hoyos, Andy O'Bannon +3
We use holography to study a -dimensional Conformal Field Theory (CFT) coupled to an impurity. The CFT is an gauge theory at large , with strong gauge interaction…
A holographic perspective on phonons and pseudo-phonons
Andrea Amoretti, Daniel Arean, Riccardo Argurio +2
We analyze the concomitant spontaneous breaking of translation and conformal symmetries by introducing in a CFT a complex scalar operator that acquires a spatially dependent expect…
Higgs-otic Inflation and Moduli Stabilization
Sjoerd Bielleman, Luis E. Ibanez, Francisco G. Pedro +2
We study closed-string moduli stabilization in Higgs-otic inflation in Type IIB orientifold backgrounds with fluxes. In this setup large-field inflation is driven by the vacuum ene…
Exceptional theories
Iñaki García-Etxebarria, Diego Regalado
We present a new construction of four dimensional theories, given by M5 branes wrapping a in an M-theory U-fold background. The resulting setup generalizes the…
Supersymmetric Casimir Energy and Transformations
Frederic Brünner, Diego Regalado, Vyacheslav P. Spiridonov
We provide a recipe to extract the supersymmetric Casimir energy of theories defined on primary Hopf surfaces directly from the superconformal index. It involves an $\mathrm{SL(3,\…
Backreaction Issues in Axion Monodromy and Minkowski 4-forms
Irene Valenzuela
We clarify the differences between the usual Kaloper-Sorbo description of axion monodromy and the effective axionic potential in terms of Minkowski 4-forms derived in string compac…
Thermodynamics of anisotropic branes
Daniel Ávila, Daniel Fernández, Leonardo Patiño +1
We study the thermodynamics of flavor D7-branes embedded in an anisotropic black brane solution of type IIB supergravity. The flavor branes undergo a phase transition between a `Mi…
Higher-Spin Algebras, Holography and Flat Space
Charlotte Sleight, Massimo Taronna
In this article we study the algebra generated by the holographically reconstructed cubic couplings for the type A minimal bosonic higher-spin theory on AdS, which were rec…
Anomalous transport in second order hydrodynamics
Eugenio Megias, Manuel Valle
We study the non-dissipative transport effects appearing at second order in the hydrodynamic expansion for a non-interacting gas of chiral fermions by using the partition function…
Partial SUSY Breaking for Asymmetric Gepner Models and Non-geometric Flux Vacua
Ralph Blumenhagen, Michael Fuchs, Erik Plauschinn
Using the method of simple current extensions, asymmetric Gepner models of Type IIB with N=1 space-time supersymmetry are constructed. The combinatorics of the massless vector fiel…
Strong Coupling and Classicalization
Gia Dvali
Classicalization is a phenomenon in which a theory prevents itself from entering into a strong-coupling regime, by redistributing the energy among many weakly-interacting soft quan…
Non-associativity in non-geometric string and M-theory backgrounds, the algebra of octonions, and missing momentum modes
Murat Gunaydin, Dieter Lust, Emanuel Malek
We propose a non-associative phase space algebra for M-theory backgrounds with locally non-geometric fluxes based on the non-associative algebra of octonions. Our proposal is based…
Shift-symmetries and gauge coupling functions in orientifolds and F-theory
Pierre Corvilain, Thomas W. Grimm, Diego Regalado
We investigate the field dependence of the gauge coupling functions of four-dimensional Type IIB orientifold and F-theory compactifications with space-time filling seven-branes. In…
Quantum duality under the theta-exact Seiberg-Witten map
Carmelo P. Martin, Josip Trampetic, Jiangyang You
We show that in the perturbative regime defined by the coupling constant, the theta-exact Seiberg-Witten map applied to noncommutative U(N) Yang-Mills --with or without Supersymmet…
New Relations for Einstein-Yang-Mills Amplitudes
Stephan Stieberger, Tomasz R. Taylor
We obtain new relations between Einstein-Yang-Mills (EYM) amplitudes involving N gauge bosons plus a single graviton and pure Yang-Mills amplitudes involving N gauge bosons plus on…