91 citations · 103 across the 7 of their papers we have counts for
9 papers
Disformal Closure Selects 3D Scalar-Tensor Gravity without Local Bulk Modes
M. Shams Nejati, M. H. Vahidinia
Three-dimensional Einstein gravity has no local degrees of freedom, yet retains rich global and black-hole physics. Adding a scalar normally spoils this. We show that closure of th…
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,…
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…
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…
Two-dimensional (bi-)scalar gravities from four-dimensional Horndeski
M. Shams Nejati, M. H. Vahidinia
We develop a classical two-dimensional bi-scalar gravity based on the Kaluza-Klein reduction applied to the four-dimensional Horndeski theory. One of the scalar fields arises from…
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)-…
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…
On Complexity for Higher Derivative Gravities
Mohsen Alishahiha, Amin Faraji Astaneh, Ali Naseh +1
Using "complexity=action" proposal we study complexity growth of certain gravitational theories containing higher derivative terms. These include critical gravity in diverse dimens…