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Effective actions for relativistic fluids from holography
Jan de Boer, Michal P. Heller, Natalia Pinzani-Fokeeva
Motivated by recent progress in developing action formulations of relativistic hydrodynamics, we use holography to derive the low energy dissipationless effective action for strong…
Boundary Conditions and Partition Functions in Higher Spin AdS/CFT
Jan de Boer, Juan I. Jottar
We discuss alternative definitions of the semiclassical partition function in two-dimensional CFTs with higher spin symmetry, in the presence of sources for the higher spin current…
Entwinement and the emergence of spacetime
Vijay Balasubramanian, Borun D. Chowdhury, Bartlomiej Czech +1
It is conventional to study the entanglement between spatial regions of a quantum field theory. However, in some systems entanglement can be dominated by "internal", possibly gauge…
Scaling BPS Solutions and pure-Higgs States
Iosif Bena, Micha Berkooz, Jan de Boer +2
Depending on the value of the coupling, BPS states of type II string theory compactified on a Calabi-Yau manifold can be described as multicenter supergravity solutions or as state…
Holographic Entanglement Entropy in Lovelock Gravities
Jan de Boer, Manuela Kulaxizi, Andrei Parnachev
We study entanglement entropies of simply connected surfaces in field theories dual to Lovelock gravities. We consider Gauss-Bonnet and cubic Lovelock gravities in detail. In the c…
AdS_7/CFT_6, Gauss-Bonnet Gravity, and Viscosity Bound
Jan de Boer, Manuela Kulaxizi, Andrei Parnachev
We study the relation between the causality and the positivity of energy bounds in Gauss-Bonnet gravity in AdS_7 background and find a precise agreement. Requiring the group veloci…
What is a chiral 2d CFT? And what does it have to do with extremal black holes?
Vijay Balasubramanian, Jan de Boer, M. M. Sheikh-Jabbari +1
The near horizon limit of the extremal BTZ black hole is a``self-dual orbifold'' of AdS_3. This geometry has a null circle on its boundary, and thus the dual field theory is a Disc…
AdS/CFT dualities involving large 2d N=4 superconformal symmetry
Jan de Boer, Andrea Pasquinucci, Kostas Skenderis
We study the duality between string theory on AdS_3 X S^3 X S^3 and two-dimensional conformal theories with large N=4 superconformal algebra A_gamma. We discuss configurations of i…
Self-Dual Supergravity from N=2 Strings
J. de Boer, K. Skenderis
A new heterotic N=2 string with manifest target space supersymmetry is constructed by combining a conventional N=2 string in the right-moving sector and a Green-Schwarz-Berkovits t…
Target Space Supersymmetric Sigma Model Calculations
Jan de Boer, Kostas Skenderis
We briefly review the covariant formulation of the Green-Schwarz superstring by Berkovits, and describe how a detailed tree-level and one-loop analysis of this model leads, for the…
Covariant Computation of the Low Energy Effective Action of the Heterotic Superstring
Jan de Boer, Kostas Skenderis
We derive the low energy effective action of the heterotic superstring in superspace. This is achieved by coupling the covariantly quantized Green-Schwarz superstring of Berkovits…
On the renormalizability and unitarity of the Curci-Ferrari model for massive vector bosons
Jan de Boer, Kostas Skenderis, Peter van Nieuwenhuizen +1
We prove the renormalizability of the Curci-Ferrari model with and without auxiliary fields using BRST methods. In both cases we find 5 factors instead of 3. We verify our resu…
Loop calculations in quantum-mechanical non-linear sigma models sigma models with fermions and applications to anomalies
Jan de Boer, Bas Peeters, Kostas Skenderis +1
We construct the path integral for one-dimensional non-linear sigma models, starting from a given Hamiltonian operator and states in a Hilbert space. By explicit evaluation of the…
Loop calculations in quantum-mechanical non-linear sigma models
Jan de Boer, Bas Peeters, Kostas Skenderis +1
By carefully analyzing the relations between operator methods and the discretized and continuum path integral formulations of quantum-mechanical systems, we have found the correct…