Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Laura Castelló"'
Publikováno v:
Phys. Rev. D 102, 083524 (2020)
In this work, we extend the formalism of hybrid loop quantum cosmology for primordial perturbations around a flat, homogeneous, and isotropic universe to the new treatment of Friedmann-Lema\^itre-Robertson-Walker geometries proposed recently by Dapor
Externí odkaz:
http://arxiv.org/abs/2002.01262
Publikováno v:
Phys. Rev. D 96, 103528 (2017)
We investigate the consequences of the hybrid quantization approach for primordial perturbations in loop quantum cosmology, obtaining predictions for the cosmic microwave background and comparing them with data collected by the Planck mission. In thi
Externí odkaz:
http://arxiv.org/abs/1702.06036
Recently, a lot of attention has been paid to the modifications of the power spectrum of primordial fluctuations caused by quantum cosmology effects. The origin of these modifications are corrections to the Mukhanov-Sasaki equations that govern the p
Externí odkaz:
http://arxiv.org/abs/1603.08448
Publikováno v:
JCAP 1506 (2015) 06, 045
We consider cosmological perturbations around homogeneous and isotropic spacetimes minimally coupled to a scalar field and present a formulation which is designed to preserve covariance. We truncate the action at quadratic perturbative order and part
Externí odkaz:
http://arxiv.org/abs/1503.03907
Publikováno v:
Phys. Rev. D 90, 064015 (2014)
We study cosmological perturbations in the framework of Loop Quantum Cosmology, using a hybrid quantization approach and Mukhanov-Sasaki variables. The formulation in terms of these gauge invariants allows one to clarify the independence of the resul
Externí odkaz:
http://arxiv.org/abs/1407.0998
We study scalar fields subject to an equation of the Klein-Gordon type in nonstationary spacetimes, such as those found in cosmology, assuming that all the relevant spatial dependence is contained in the Laplacian. We show that the field description
Externí odkaz:
http://arxiv.org/abs/1403.6984
Autor:
Gomar, Laura Castelló, Cortez, Jerónimo, Blas, Daniel Martín-de, Marugán, Guillermo A. Mena, Velhinho, José. M.
Publikováno v:
EJTP 11 (2014) 43-64
We study the Fock quantization of scalar fields with a time dependent mass in cosmological scenarios with flat compact spatial sections. This framework describes physically interesting situations like, e.g., cosmological perturbations in flat Friedma
Externí odkaz:
http://arxiv.org/abs/1212.5677
Autor:
Gomar, Laura Castelló, Cortez, Jerónimo, Blas, Daniel Martín-de, Marugán, Guillermo A. Mena, Velhinho, José M.
Publikováno v:
JCAP 1211:001, 2012
We study the Fock quantization of scalar fields in (generically) time dependent scenarios, focusing on the case in which the field propagation occurs in --either a background or effective-- spacetime with spatial sections of flat compact topology. Th
Externí odkaz:
http://arxiv.org/abs/1211.5176
Autor:
Anna Bonaterra-Pastra, Montse Solé, Silvia Lope-Piedrafita, Maria Lucas-Parra, Laura Castellote, Paula Marazuela, Olalla Pancorbo, David Rodríguez-Luna, Mar Hernández-Guillamon
Publikováno v:
Alzheimer’s Research & Therapy, Vol 16, Iss 1, Pp 1-15 (2024)
Abstract Background Cerebral amyloid angiopathy (CAA) is characterized by amyloid-β (Aβ) deposition in cerebral vessels, leading to lobar cerebral microbleeds (CMB) and intracerebral hemorrhages (ICH). Apolipoprotein J (ApoJ) is a multifunctional c
Externí odkaz:
https://doaj.org/article/e3f61ed7e3fb4f52aaafdd99cb00697b
Autor:
Pedro L. Valenzuela, Alfredo Santalla, Lidia B. Alejo, Andrea Merlo, Asunción Bustos, Laura Castellote-Bellés, Roser Ferrer-Costa, Nicola A. Maffiuletti, David Barranco-Gil, Tomás Pinós, Alejandro Lucia
Publikováno v:
Journal of Sport and Health Science, Vol 13, Iss 3, Pp 398-408 (2024)
Background: This study aimed to determine the effect of different carbohydrate (CHO) doses on exercise capacity in patients with McArdle disease—the paradigm of “exercise intolerance”, characterized by complete muscle glycogen unavailability—
Externí odkaz:
https://doaj.org/article/fb61b42650ff49bb88a5a8f18233ff71