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16 papers · 2 filters
AdS plane waves and entanglement entropy
K. Narayan, Tadashi Takayanagi, Sandip P. Trivedi
AdS plane waves describe simple backgrounds which are dual to anisotropically excited systems with energy fluxes. Upon dimensional reduction, they reduce to hyperscaling violating…
On the glueball spectrum of walking backgrounds from wrapped-D5 gravity duals
Daniel Elander, Maurizio Piai
We compute the mass spectrum of glueball excitations of a special class of strongly-coupled field theories via their type-IIB supergravity dual. We focus on two subclasses of backg…
CMB from CFT
Ishan Mata, Suvrat Raju, Sandip Trivedi
During inflation, spacetime is approximately described by de Sitter space which is conformally invariant with the symmetry group SO(1,4). This symmetry can significantly constrain…
An Infalling Observer in AdS/CFT
Kyriakos Papadodimas, Suvrat Raju
We describe the experience of an observer falling into a black hole using the AdS/CFT correspondence. In order to do this, we reconstruct the local bulk operators measured by the o…
Comment on Strings in AdS3 x S3 x S3 x S1 at One Loop
Michael C. Abbott
This paper studies semiclassical strings in AdS3 x S3 x S3 x S1 using the algebraic curve. Calculating one-loop corrections to the energy of the giant magnon fixes the constant ter…
Priomordial non-Gaussian features from DBI Galileon inflation
Sayantan Choudhury, Supratik Pal
We have studied primordial non-Gaussian features from a model of potential driven single field DBI Galileon inflation. We have computed the bispectrum from the three point correlat…
Chern-Simons-Fermion Vector Model with Chemical Potential
Shuichi Yokoyama
We study SU(N) level k Chern-Simons theories coupling to a fundamental fermion with chemical potential for U(1) flavor symmetry. We solve this system exactly in the 't Hooft limit,…
Entangled Dilaton Dyons
Nilay Kundu, Prithvi Narayan, Nilanjan Sircar +1
Einstein-Maxwell theory coupled to a dilaton is known to give rise to extremal solutions with hyperscaling violation. We study the behaviour of these solutions in the presence of a…
Supersymmetric Chern-Simons Theories with Vector Matter
Sachin Jain, Sandip P. Trivedi, Spenta R. Wadia +1
In this paper we discuss SU(N) Chern-Simons theories at level k with both fermionic and bosonic vector matter. In particular we present an exact calculation of the free energy of t…
ABJ Triality: from Higher Spin Fields to Strings
Chi-Ming Chang, Shiraz Minwalla, Tarun Sharma +1
We demonstrate that a supersymmetric and parity violating version of Vasiliev's higher spin gauge theory in AdS admits boundary conditions that preserve or…
Constraints on Anomalous Fluid in Arbitrary Dimensions
Nabamita Banerjee, Suvankar Dutta, Sachin Jain +2
Using the techniques developed in arxiv: 1203.3544 we compute the universal part of the equilibrium partition function characteristic of a theory with multiple abelian U(1) anomali…
Constraints on Superfluid Hydrodynamics from Equilibrium Partition Functions
Sayantani Bhattacharyya, Sachin Jain, Shiraz Minwalla +1
Following up on recent work in the context of ordinary fluids, we study the equilibrium partition function of a 3+1 dimensional superfluid on an arbitrary stationary background spa…
Anomalous charged fluids in 1+1d from equilibrium partition function
Sachin Jain, Tarun Sharma
In this note we explore the constraints imposed by the existence of equilibrium partition on parity violating charged fluids in 1+1 dimensions at zero derivative order. We write th…
Multiple Membranes in M-theory
Jonathan Bagger, Neil Lambert, Sunil Mukhi +1
We review developments in the theory of multiple, parallel membranes in M-theory. After discussing the inherent difficulties pertaining to a maximally supersymmetric lagrangian for…
Constraints on Fluid Dynamics from Equilibrium Partition Functions
Nabamita Banerjee, Jyotirmoy Bhattacharya, Sayantani Bhattacharyya +3
We study the thermal partition function of quantum field theories on arbitrary stationary background spacetime, and with arbitrary stationary background gauge fields, in the long w…
Bianchi Attractors: A Classification of Extremal Black Brane Geometries
Norihiro Iizuka, Shamit Kachru, Nilay Kundu +3
Extremal black branes are of interest because they correspond to the ground states of field theories at finite charge density in gauge/gravity duality. The geometry of such a brane…