Zobrazeno 1 - 10
of 11 030
pro vyhledávání: '"J Alberto"'
We re-visit the generation and evolution of (Bell) nonlocality in hybrid scenarios whose dynamics is determined by the Jaynes-Cummings Hamiltonian, a relevant example of which is the atom-cavity system. Previous approaches evaluate the nonlocality th
Externí odkaz:
http://arxiv.org/abs/2410.10651
Autor:
Kiefer, Lara, Wirth, Felix, Bertin, Alexandre, Becker, Petra, Bohatý, Ladislav, Schmalzl, Karin, Stunault, Anne, Rodríguez-Velamazán, J. Alberto, Fabelo, Oscar, Braden, Markus
RuO$_2$ was considered for a long time to be a paramagnetic metal with an ideal rutile-type structure down to low temperatures, but recent studies on single-crystals claimed evidence for antiferromagnetic order and some symmetry breaking in the cryst
Externí odkaz:
http://arxiv.org/abs/2410.05850
Publikováno v:
Universe 2024, 10(12), 464
The current accelerated expansion of the Universe remains ones of the most intriguing topics in modern cosmology, driving the search for innovative statistical techniques. Recent advancements in machine learning have significantly enhanced its applic
Externí odkaz:
http://arxiv.org/abs/2410.02061
Autor:
Akarsu, Özgür, De Felice, Antonio, Di Valentino, Eleonora, Kumar, Suresh, Nunes, Rafael C., Özülker, Emre, Vazquez, J. Alberto, Yadav, Anita
Publikováno v:
Phys. Rev. D 110, 103527 (2024)
The idea of a rapid sign-switching cosmological constant (mirror AdS-dS transition) in the late universe at $z\sim1.7$, known as the $\Lambda_{\rm s}$CDM model, has significantly improved the fit to observational data and provides a promising scenari
Externí odkaz:
http://arxiv.org/abs/2406.07526
Publikováno v:
Phys. Rev. D 110, 083518 (2024)
In this paper, we present a novel approach to accelerate the Bayesian inference process, focusing specifically on the nested sampling algorithms. Bayesian inference plays a crucial role in cosmological parameter estimation, providing a robust framewo
Externí odkaz:
http://arxiv.org/abs/2405.03293
Autor:
Hernández-Cabrera, Juan F., De Miguel, Javier, Hernández-Suárez, E., Joven, Enrique, Lorenzo-Hernández, H., Otani, Chiko, Rubiño-Martín, J. Alberto, Zioutas, Konstantin
We report a methodology to determine the quality factor ($Q$) in implementations of the so-called dielectric haloscope, a new concept of wavy dark matter detector equipped with a multilayered resonator. An anechoic chamber enables the observation of
Externí odkaz:
http://arxiv.org/abs/2405.01096
Galactic rotation curves have been served as indispensable tools for determining the distribution of mass within galaxies. Despite several advances in precision observations, some discrepancies still persist between the inferred matter distribution f
Externí odkaz:
http://arxiv.org/abs/2404.05833
We evaluate the maximal Bell violation for a generic qubit-qudit system, obtaining easily computable expressions in arbitrary qudit dimension. This work generalizes the well-known Horodeckis's result for a qubit-qubit system. We also give simple lowe
Externí odkaz:
http://arxiv.org/abs/2404.02092
Autor:
Escamilla, Luis A., Pan, Supriya, Di Valentino, Eleonora, Paliathanasis, Andronikos, Vázquez, J. Alberto, Yang, Weiqiang
The main aim of this work is to use a model-independent approach, along with late-time observational probes, to reconstruct the dark energy (DE) equation of state $w_{\rm DE}(z)$. Our analysis showed that, for a late time universe, $w_{\rm DE}$ devia
Externí odkaz:
http://arxiv.org/abs/2404.00181
Publikováno v:
Phys. Rev. D, 110(2), 023529 (2024)
The main aim of this work is to explore the possibility that cold dark matter (CDM) and early dark energy (EDE) can be described by canonical scalar fields that are coupled at the level of its conservation equations. The formalism covers dynamical as
Externí odkaz:
http://arxiv.org/abs/2402.08815