242 citations · 1k across the 37 of their papers we have counts for
38 papers
Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
Mariam Bouhmadi-López, Che-Yu Chen, Xiao Yan Chew +2
We numerically construct a symmetric wormhole solution in pure Einstein gravity supported by a massive -form field with a potential that contains a quartic self-interaction term…
Classical and quantum cosmology: The big rip, the little rip and the little sibling of the big rip
Teodor Borislavov Vasilev, Mariam Bouhmadi-López, Prado Martín-Moruno
The big rip, the little rip and the little sibling of the big rip are cosmological doomsdays predicted by some phantom dark energy models that could describe the future evolution o…
Modified Gravity and Cosmology: An Update by the CANTATA Network
Emmanuel N. Saridakis, Ruth Lazkoz, Vincenzo Salzano +50
General Relativity and the CDM framework are currently the standard lore and constitute the concordance paradigm. Nevertheless, long-standing open theoretical issues, as well as…
The little rip in classical and quantum cosmology
Teodor Borislavov Vasilev, Mariam Bouhmadi-López, Prado Martín-Moruno
The little rip is a cosmological abrupt event predicted by some phantom dark energy models that could describe the future evolution of our Universe. This event can be interpreted a…
Lessons from black hole quasinormal modes in modified gravity
Che-Yu Chen, Mariam Bouhmadi-López, Pisin Chen
Quasinormal modes of perturbed black holes have recently gained much interest because of their tight relations with the gravitational wave signals emitted during the post-merger ph…
Non-minimal Higgs inflation within holographic cosmology
Aatifa Bargach, Farida Bargach, Mariam Bouhmadi-López +1
We derive a Higgs inflationary model in the context of holographic cosmology, where we consider a universe filled with a Higgs field non-minimally coupled to gravity in a slow-roll…
A varying Dark Energy effective speed of sound parameter in the phantom Universe
Imanol Albarran, Mariam Bouhmadi-López, João Marto
We analyse the phenomenological effects of a varying Dark Energy (DE) effective speed of sound parameter, , on the cosmological perturbations of three phantom…
Regular Black Hole Interior Spacetime Supported by Three-Form Field
Mariam Bouhmadi-López, Che-Yu Chen, Xiao Yan Chew +2
In this paper, we show that a minimally coupled 3-form endowed with a proper potential can support a regular black hole interior. By choosing an appropriate form for the metric fun…
A consistent model of non-singular Schwarzschild black hole in loop quantum gravity and its quasinormal modes
Mariam Bouhmadi-López, Suddhasattwa Brahma, Che-Yu Chen +2
We investigate the interior structure, perturbations, and the associated quasinormal modes of a quantum black hole model recently proposed by Bodendorfer, Mele, and Münch (BMM). Wi…
Eddington-inspired-Born-Infeld tensorial instabilities neutralized in a quantum approach
Imanol Albarran, Mariam Bouhmadi-López, Che-Yu Chen +1
The recent direct detection of gravitational waves has highlighted the huge importance of the tensorial modes in any extended gravitational theory. One of the most appealing approa…
Annihilation-to-nothing: a quantum gravitational boundary condition for the Schwarzschild black hole
Mariam Bouhmadi-López, Suddhasattwa Brahma, Che-Yu Chen +2
The interior of a static Schwarzschild metric can be written in terms of two functions, similar to some models of anisotropic cosmology. With a suitable choice of canonical variabl…
The classical and quantum fate of the Little Sibling of the Big Rip in cosmology
Teodor Borislavov Vasilev, Mariam Bouhmadi-López, Prado Martín-Moruno
The Little Sibling of the Big Rip is a cosmological abrupt event predicted by some phantom cosmological models that could describe our Universe. When this event is approached the o…
Cosmological constraints of phantom dark energy models
Amine Bouali, Imanol Albarran, Mariam Bouhmadi-López +1
We address three genuine phantom dark energy models where each of them induces the particular future events known as Big Rip, Little Rip and Little Sibling of the Big Rip. The back…
Phantom singularities and their quantum fate: general relativity and beyond
Mariam Bouhmadi-López, Claus Kiefer, Prado Martín-Moruno
Cosmological observations allow the possibility that dark energy is caused by phantom fields. These fields typically lead to the occurrence of singularities in the late Universe. W…
Asymptotic non-flatness of an effective black hole model based on loop quantum gravity
Mariam Bouhmadi-López, Suddhasattwa Brahma, Che-Yu Chen +2
For any non-rotating effective quantum (uncharged) black hole model to be viable, its asymptotic structure of spacetime should reduce to that of a Schwarzschild black hole. After e…
An interacting holographic dark energy model within an induced gravity brane
Moulay-Hicham Belkacemi, Zahra Bouabdallaoui, Mariam Bouhmadi-López +2
In this paper, we present a model for the late-time evolution of the universe where a dark energy-dark matter interaction is invoked. Dark energy is modeled through an holographic…
Quantum cosmology of Eddington-Born-Infeld gravity fed by a scalar field: the big rip case
Imanol Albarran, Mariam Bouhmadi-López, Che-Yu Chen +1
We study the quantum avoidance of the big rip singularity in the Eddington-inspired-Born-Infeld (EiBI) phantom model. Instead of considering a simple phantom dark energy component,…
On the Consistency of the Wheeler-DeWitt Equation in the Quantized Eddington-inspired Born-Infeld Gravity
Mariam Bouhmadi-López, Che-Yu Chen, Pisin Chen
We re-examine the quantum geometrodynamical approach within the Eddington-inspired-Born-Infeld theory of gravity, which was first proposed in our previous work [1]. A thorough anal…
The interacting multiverse and its effect on the cosmic microwave background
Mariam Bouhmadi-López, Manuel Kraemer, João Morais +1
We study a toy model of a multiverse consisting of canonically quantized universes that interact with each other on a quantum level based on a field-theoretical formulation of the…
Quantum behavior of the "Little Sibling" of the Big Rip induced by a three-form field
Mariam Bouhmadi-López, David Brizuela, Iñaki Garay
A canonical quantization à la Wheeler-DeWitt is performed for a model of three-form fields in a homogeneous and isotropic universe. We start by carrying out the Hamiltonian formali…
Primordial Cosmology in Mimetic Born-Infeld Gravity
Mariam Bouhmadi-López, Che-Yu Chen, Pisin Chen
The Eddington-inspired-Born-Infeld (EiBI) model is reformulated within the mimetic approach. In the presence of a mimetic field, the model contains non-trivial vacuum solutions whi…
Doomsdays in a modified theory of gravity: A classical and a quantum approach
Imanol Albarran, Mariam Bouhmadi-López, Che-Yu Chen +1
By far cosmology is one of the most exciting subject to study, even more so with the current bulk of observations we have at hand. These observations might indicate different kinds…
Cosmic infinity: A dynamical system approach
Mariam Bouhmadi-López, João Marto, João Morais +1
Dynamical system techniques are extremely useful to study cosmology. It turns out that in most of the cases, we deal with finite isolated fixed points corresponding to a given cosm…
Cosmological perturbations in an effective and genuinely phantom dark energy Universe
Imanol Albarran, Mariam Bouhmadi-López, João Morais
We carry out an analysis of the cosmological perturbations in general relativity for three different models which are good candidates to describe the current acceleration of the Un…