39 citations · 192 across the 15 of their papers we have counts for
11 papers · 1 filter
Near-Light-Cone Nonhydrodynamic Structure from Boosted Hydrodynamics
Navid Abbasi, Jewel Kumar Ghosh, Dirk H. Rischke
Hydrodynamics provides a universal description of many-body systems at long wavelengths. Its long-lived collective excitations, known as hydrodynamic modes, admit long-wavelength e…
Scale without conformal symmetry in hydrodynamics
Evangelos Afxonidis, Jewel Kumar Ghosh, Daniele Musso +2
Scale without conformal symmetry corresponds to an inhomogeneous conservation equation for the virial current sourced by the trace of the energy-momentum tensor. Fluids that are ju…
Holographic QFTs on AdS, wormholes and holographic interfaces
A. Ghodsi, J. K. Ghosh, E. Kiritsis +2
We consider three related topics: (a) Holographic quantum field theories on AdS spaces. (b) Holographic interfaces of flat space QFTs. (c) Wormholes connecting generically differen…
An Effective Theory Of Anomalous Momentum Diffusion From Holography
Jewel K. Ghosh, M. Arshad Momen
We consider a Maxwell-Chern-Simons theory in -dimensions, and analyze the vector perturbations around a classical charged black-brane background. We solve the equations o…
Revisiting Coleman-de Luccia transitions in the AdS regime using holography
Jewel K. Ghosh, Elias Kiritsis, Francesco Nitti +1
Coleman-de Luccia processes for AdS to AdS decays in Einstein-scalar theories are studied. Such tunnelling processes are interpreted as vev-driven holographic RG flows of a quantum…
Effective field theory of stochastic diffusion from gravity
Jewel K. Ghosh, R. Loganayagam, Siddharth G. Prabhu +3
Planar black holes in AdS have long-lived quasinormal modes which capture the physics of charge and momentum diffusion in the dual field theory. How should we characterize the effe…
Comments on Sen's Classical Entropy Function for Static and Rotating AdS Black Holes
Jewel K. Ghosh, Leopoldo A. Pando Zayas
We consider various aspects of Sen's classical entropy function formalism for asymptotically AdS black holes with emphasis on its efficacy to capture higher derivative correcti…
Back-reaction in massless de Sitter QFTs: holography, gravitational DBI action and f(R) gravity
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
We employ gauge-gravity duality to study the backreaction effect of 4-dimensional large- quantum field theories on constant-curvature backgrounds, and in particular de Sitter sp…
Holographic RG flows on curved manifolds and the -theorem
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
We study -functions in the context of field theories on using gauge-gravity duality, with the radius of playing the role of RG scale. We show that the on-shell actio…
De Sitter and Anti-de Sitter branes in self-tuning models
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
Maximally symmetric curved-brane solutions are studied in dilatonic braneworld models which realise the self-tuning of the effective four-dimensional cosmological constant. It is f…
Holographic RG flows on curved manifolds and quantum phase transitions
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
Holographic RG flows dual to QFTs on maximally symmetric curved manifolds (dS, AdS, and ) are considered in the framework of Einstein-dilaton gravity in dimensio…