Dr. Ahmad Shirzad shirzad@iut.ac.ir Office Department of Physics Phone 0311-3913712 Fax 0311-3912376 Positions Department of Physics Research Interests High Energy Physics Mathematical Physics Dr. Ahmad Shirzad type: Journal Title Conference / Journal Date Generators of local Lorentz transformation in ADM-Vielbein formalism of gravitational relativity CLASSICAL AND QUANTUM GRAVITY 2025-08 Constraint structure of the generalized Proca model in the Lagrangian formalism Heliyon 2024-08 Constraint analysis of Fierz-Pauli action through linearization of its nonlinear action constraints European Physical Journal Plus 2024-06 Hamiltonian structure of Fierz-Pauli gravitons, partially massless fields and gauge symmetry 2022-03 Gauge generator for bi-gravity and multi-gravity models 2021-05 Hamiltonian formalism of the ghost free tri(-multi)gravity theory 2021-01 Black hole entropy and boundary conditions 2020-06 Hamiltonian structure of bi-gravity, problem of ghost and bifurcation 2019-11 Entanglement entropy and complexity of singular subregions in deformed CFT 2019-06 Phononic Casimir corrections for Graphene resonator 2019-03