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20 papers · 2 filters
On closed-string twist-field correlators and their open-string descendants
Pascal Anastasopoulos, Massimo Bianchi, Robert Richter
In a recent paper we have proposed the possibility that the lightest massive string states could be identified with open strings living at intersections of D-branes forming small a…
Violation of the Holographic Viscosity Bound in a Strongly Coupled Anisotropic Plasma
Anton Rebhan, Dominik Steineder
We study the conductivity and shear viscosity tensors of a strongly coupled N=4 super-Yang-Mills plasma which is kept anisotropic by a theta parameter that depends linearly on one…
Conformal Chern-Simons holography - lock, stock and barrel
Hamid Afshar, Branislav Cvetković, Sabine Ertl +2
We discuss a fine-tuning of rather generic three dimensional higher-curvature gravity actions that leads to gauge symmetry enhancement at the linearized level via partial masslessn…
Light stringy states
Pascal Anastasopoulos, Massimo Bianchi, Robert Richter
We carefully study the spectrum of open strings localized at the intersections of D6-branes and identify the lowest massive 'twisted' states and their vertex operators, paying part…
Holographic baryonic matter in a background magnetic field
Florian Preis, Anton Rebhan, Andreas Schmitt
We discuss the effect of baryonic matter on the zero-temperature chiral phase transition at finite chemical potential in the presence of a background magnetic field. The main part…
On semiclassical calculation of three-point functions in AdS_5 \times T^(1,1)
Michal Michalcik, Radoslav C. Rashkov, Maria Schimpf
Recently there has been progress on the computation of two- and three-point correlation functions with two "heavy" states via semiclassical methods. We extend this analysis to the…