39 citations · 192 across the 15 of their papers we have counts for
15 papers
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…
Hydrostatic equilibrium in multi-Weyl semimetals
Jewel Kumar Ghosh, Francisco Peña-Benítez, Patricio Salgado-Rebolledo
We study the hydrostatic equilibrium of multi-Weyl semimetals, a class of systems with Weyl-like quasi-particles but anisotropic dispersion relation $ω^2 \sim k_\parallel^2 + k_\pe…
Quantum (in)stability of maximally symmetric space-times
Jewel K. Ghosh, Elias Kiritsis, Francesco Nitti +1
Classical gravity coupled to a CFT (matter) is considered. The effect of the quantum dynamics of matter on gravity is studied around maximally symmetric spaces (flat, de Sitter…
Nodal-antinodal dichotomy from anisotropic quantum critical continua in holographic models
Ronnie Rodgers, Jewel Kumar Ghosh, Alexander Krikun
We demonstrate that the absence of stable quasiparticle excitations on parts of the Fermi surface, similar to the "nodal-antinodal dichotomy" in underdoped cuprate superconductors,…
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…
Is the Chiral Magnetic Effect fast enough?
Jewel K. Ghosh, Sebastian Grieninger, Karl Landsteiner +1
It depends: While we find within holography that the lifetime of the magnetic field for collider energies like the ones achieved at RHIC is long enough to build up the chiral magne…
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…