5 papers
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…
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…
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…