102 citations · 362 across the 28 of their papers we have counts for
29 papers
Who Writes the Gravitational Second Law of Thermodynamics?
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
We define gravitational entropy as the manifestly integrable surface charge associated with local transverse Lorentz boosts, entirely bypassing the conventional reliance on spaceti…
Dynamical Entropy Is a Noether Charge
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
Black hole thermodynamics for generic dynamical, non-equilibrium regimes remains a fundamental challenge. We establish dynamical entropy as the Noether charge associated with a gen…
GR from RG, Example: JT-Gravity Induced from Renormalization Group Flow
M. M. Sheikh-Jabbari, V. Taghiloo
We demonstrate how the two-dimensional gravity emerges within ``GR from RG'' program initiated in \cite{Adami:2025pqr, Sheikh-Jabbari:2026uol}. To achieve this, we consider a gener…
Geometric Aspects of Covariant Phase Space Formalism: Solution Space Slicings and Surface Charge Integrability
M. Golshani, M. M. Sheikh-Jabbari, V. Taghiloo +1
The Covariant Phase Space Formalism (CPSF) provides a robust framework for deriving symplectic structures and surface charges in diffeomorphism-invariant theories. By construction,…
GR from RG: Gravity Is Induced From Renormalization Group Flow In The Infrared
M. M. Sheikh-Jabbari, V. Taghiloo
In this essay and utilizing the holographic Renormalization Group (RG) flow, we demonstrate how the effective action of a non-gravitating quantum field theory in the ultraviolet (U…
Freelance Fluid/Gravity Correspondence, 3d Analysis
M. M. Sheikh-Jabbari, V. Taghiloo
Freelance holography program is an extension of gauge/gravity correspondence, where the gravity theory is defined on a portion of AdS with an arbitrary timelike boundary, with any…
Gravitational Entropy And The Second Law of Thermodynamics for Causal Observers
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
It is well established that black holes possess entropy and behave as thermodynamic systems. Associating entropy with gravitational fields has not remained limited to black holes,…
AdS Freelance Holography, A Detailed Analysis
M. M. Sheikh-Jabbari, V. Taghiloo
Freelance holography program is an extension of the gauge/gravity correspondence in which the boundary theory can reside on any timelike codimension-one surface in AdS space, and t…
Freelance Holography
Vahid Taghiloo
In this paper, we introduce the Freelance Holography Program, an extension of the AdS/CFT correspondence within the saddle-point approximation that opens several novel directions.…
Gravity Is Induced By Renormalization Group Flow
H. Adami, M. M. Sheikh-Jabbari, V. Taghiloo
We revisit the holographic renormalization group (RG) setting in which a 4-dimensional () quantum field theory at a finite cutoff corresponds to/is described by the Einstein gr…
Generalized Symmetries in Shallow Water
V. Taghiloo, M. H. Vahidinia
Recent developments have extended the concept of global symmetries in several directions, offering new perspectives across a wide range of physical systems. This work shows that ge…
Freelance Holography, Part II: Moving Boundary in Gauge/Gravity Correspondence
A. Parvizi, M. M. Sheikh-Jabbari, V. Taghiloo
We continue developing the freelance holography program, formulating gauge/gravity correspondence where the gravity side is formulated on a space bounded by a generic timelike codi…
Freelance Holography, Part I: Setting Boundary Conditions Free in Gauge/Gravity Correspondence
A. Parvizi, M. M. Sheikh-Jabbari, V. Taghiloo
We explore AdS/CFT duality in the large limit, where the duality reduces to gauge/gravity correspondence, from the viewpoint of covariant phase space formalism (CPSF). In parti…
Covariant Phase Space Formalism for Fluctuating Boundaries
H. Adami, M. Golshani, M. M. Sheikh-Jabbari +2
We reconsider formulating dimensional gauge theories, with the focus on the case of gravity theories, in spacetimes with boundaries. We extend covariant phase space formalism t…
Charges in General Relativity and Black Hole Thermodynamics
M. Golshani, M. M. Sheikh-Jabbari, V. Taghiloo +1
We shed a new light on the longstanding problem of covariant charges in diffeomorphism invariant theories like General Relativity (GR) by noting the other important feature of the…
Darboux Soft Hair in 3D Asymptotically Flat Spacetimes
Vahid Taghiloo
In this paper, we construct a fully on-shell solution space for three-dimensional Einstein's gravity in asymptotically flat spacetimes using a finite coordinate transformation. Thi…
Gravitational Stress Tensor and Current at Null Infinity in Three Dimensions
H. Adami, M. M. Sheikh-Jabbari, V. Taghiloo
We develop the framework that reveals the intrinsic conserved stress tensor and current associated with the null infinity of a three-dimensional () asymptotically flat spacetim…
Heisenberg Soft Hair on Robinson-Trautman Spacetimes
H. Adami, A. Parvizi, M. M. Sheikh-Jabbari +1
We study 4 dimensional ) gravitational waves (GWs) with compact wavefronts, generalizing Robinson-Trautman (RT) solutions in Einstein gravity with an arbitrary cosmological co…
Carrollian Structure of the Null Boundary Solution Space
H. Adami, A. Parvizi, M. M. Sheikh-Jabbari +2
We study pure dimensional Einstein gravity in spacetimes with a generic null boundary. We focus on the symplectic form of the solution phase space which comprises a dimens…
Fluid/p-form duality
V. Taghiloo, M. H. Vahidinia
In this study, we demonstrate that an inviscid fluid in a near-equilibrium state, when viewed in the Lagrangian picture in d+1 spacetime dimensions, can be reformulated as a (d-1)-…
Hydro & Thermo Dynamics at Causal Boundaries, Examples in 3d Gravity
H. Adami, A. Parvizi, M. M. Sheikh-Jabbari +2
We study 3-dimensional gravity on a spacetime bounded by a generic 2-dimensional causal surface. We review the solution phase space specified by 4 generic functions over the causal…
Shallow Water Memory: Stokes and Darwin Drifts
M. M. Sheikh-Jabbari, V. Taghiloo, M. H. Vahidinia
It has been shown in \cite{Tong:2022gpg} that shallow water in the Euler description admits a dual gauge theory formulation. We show in the Lagrange description this gauge symmetry…
Temporal vs Spatial Conservation and Memory Effect in Electrodynamics
V. Taghiloo, M. H. Vahidinia
We consider the standard Maxwell's theory in 1+3 dimensions in the presence of a timelike boundary. In this context, we show that (generalized) Ampere-Maxwell's charge appears as a…
Null Surface Thermodynamics in Topologically Massive Gravity
Vahid Taghiloo
We study three dimensional topologically massive gravity (TMG) in presence of a generic codimension one null boundary. The existence of the boundary is accounted for by enlarging t…