16 citations · 22 across the 12 of their papers we have counts for
12 papers
The Steep Price of No Hair in a Modified Loop Quantum Cosmology
Meysam Motaharfar, Parampreet Singh
A modified version of loop quantum cosmology model, the so-called mLQC-I, motivated by Thiemann's regularization of the Hamiltonian constraint, leads to the resolution of the big b…
Quantum Cosmology in Krylov Space: Complexity and Entropy
Meysam Motaharfar, Maxwell R. Siebersma, Parampreet Singh
We study the quantum dynamics in Krylov space of a spatially flat, homogeneous, and isotropic universe sourced with a massless scalar field within Wheeler-DeWitt (WDW) quantum cosm…
Echoes of Love Beyond the Horizon: A Bridge to Recovering Information from Black Holes
Meysam Motaharfar, Parampreet Singh
We provide further evidence that information is preserved during black hole evaporation and may be recoverable, provided quantum gravitational effects resolve the singularity. We d…
Love Numbers of Covariant Loop Quantum Black Holes
Meysam Motaharfar, Parampreet Singh
We investigate the linear static response of three covariant loop quantum black holes, namely, the two models proposed by Zhang, Lewandowski, Ma, and Yang (ZLMY) and the Alonso-Bar…
Lessons from gauge fixing and polymerization of loop quantum black holes with a cosmological constant
Geeth Ongole, Parampreet Singh, Anzhong Wang
Loop quantization of Schwarzschild black holes with a cosmological constant for polymerization parameters which are constant is studied in the effective spacetime description. We s…
Loop Quantum Gravitational Signatures via Love Numbers
Meysam Motaharfar, Parampreet Singh
Loop quantum gravitational effects can resolve the central singularity of black holes while potentially leaving tiny traces of quantization in the exterior spacetime. We show the w…
Anisotropic non-singular quantum bounce as a seesaw and amplification mechanism for magnetic fields
Meysam Motaharfar, Parampreet Singh
We investigate the evolution of a homogeneous magnetic field within Bianchi-I loop quantum cosmology, in which the big bang singularity is replaced with an anisotropic quantum boun…
Regular black holes and their relationship to polymerized models and mimetic gravity
Kristina Giesel, Hongguang Liu, Parampreet Singh +1
We present further applications of the formalism introduced by the authors in arXiv:2308.10949, which allows embedding of a broad class of generalized LTB models into effective sph…
Constraining regularization ambiguities in Loop Quantum Cosmology via CMB
Bao-Fei Li, Meysam Motaharfar, Parampreet Singh
In order to investigate the potential observational signals of different regularization ambiguities in loop quantum cosmological models, we systematically compute and compare the p…
On the classicality and uniqueness in loop quantization of Bianchi-I spacetimes
Meysam Motaharfar, Parampreet Singh, Eklavya Thareja
In loop quantum cosmology, ambiguities in the Hamiltonian constraint can result in models with varying phenomenological predictions. In the homogeneous isotropic models, these ambi…
Revisiting quantum black holes from effective loop quantum gravity
Geeth Ongole, Parampreet Singh, Anzhong Wang
We systematically study a family of loop quantizations for the classical Kruskal spacetimes using the effective description motivated from loop quantum gravity for four generic par…
Alternative effective mass functions in the modified Mukhanov-Sasaki equation of loop quantum cosmology
Bao-Fei Li, Parampreet Singh
Modifications to the Mukhanov-Sasaki equation in loop quantum cosmology (LQC) have been phenomenologically explored using polymerization of the connection and related variables in…