activity
20072026
most citedThe little sibling of the big rip singularity

79 citations · 458 across the 32 of their papers we have counts for

collaborators

33 papers

gr-qc2026

Relational Frame Equivalence and Exact Cosmology in Brans--Dicke Theory

Yaser Tavakoli

We apply the canonical clock-sector framework developed in Ref.~\cite{Tavakoli:2026coc} to spatially flat FLRW cosmology in Brans--Dicke theory. The aim is to obtain an explicit co…

gr-qc2026

Fermionic Backreaction on Quantum Spacetimes: Cosmological Implications

Y. Tavakoli, A. Khaleghi Ardabili, S. Mosaddegh

This article reviews a Hamiltonian framework for describing Dirac fermions propagating on quantum cosmological spacetimes within loop quantum cosmology. Expanding the fermionic fie…

gr-qc2026

Canonical Clock Sectors and Relational Frame Equivalence in Brans--Dicke Theory

Yaser Tavakoli, Jerzy Lewandowski

We investigate the equivalence of the Jordan and Einstein frames of the Brans--Dicke theory before and after relational deparametrization of the constrained Hamiltonian system. Alt…

gr-qc2025

Fermions in a loop quantum cosmological spacetime

Yaser Tavakoli, Ahad K. Ardabili, Sara Mosaddegh

We present a detailed Hamiltonian treatment of an inhomogeneous fermionic perturbation propagating on a closed FLRW spacetime quantized via LQC. Expanding the fermion in spinor har…

gr-qc2023★ 1 cited

Constraining the quantum gravity polymer scale using LIGO data

Angel Garcia-Chung, Matthew F. Carney, James B. Mertens +3

We present the first empirical constraints on the polymer scale describing polymer quantized GWs propagating on a classical background. These constraints are determined from the po…

gr-qc2022★ 6 cited

What do gravitational wave detectors say about polymer quantum effects?

Angel Garcia-Chung, Matthew F. Carney, James B. Mertens +3

We compute the expected response of detector arms of gravitational wave observatories to polymerized gravitational waves. The mathematical and theoretical features of these waves w…