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pro vyhledávání: '"Casas J"'
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:
Cueli, M. M., Cabo, S. R., González-Nuevo, J., Bonavera, L., Lapi, A., Viel, M., Crespo, D., Casas, J. M., Fernández-Fernández, R.
The phenomenon of magnification bias can induce a non-negligible angular correlation between two samples of galaxies with nonoverlapping redshift distributions. This signal is particularly clear when background submillimeter galaxies are used, and ha
Externí odkaz:
http://arxiv.org/abs/2406.03236
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
Gravitational lensing is a powerful tool for studying the distribution of mass in the Universe. Understanding the magnification bias effect in gravitational lensing and its impact on the flux of sub-millimetre galaxies (SMGs) is crucial for accurate
Externí odkaz:
http://arxiv.org/abs/2403.01990
Autor:
Aguilar-Saavedra, J. A., Casas, J. A.
Particle decays do not constitute a spin ``measurement'' in the quantum-mechanical sense, but still modify the spin state, in particular for an entangled system. We show that for a spin-entangled pair of particles the entanglement of the system can i
Externí odkaz:
http://arxiv.org/abs/2401.06854
Autor:
Casas, J. M., Jafari, S. Hadi
We introduce the notion of isoclinism between central extensions in the category of algebras with bracket. We provide several equivalent conditions under which algebras with bracket are isoclinic. We also study the connection between isoclinism and t
Externí odkaz:
http://arxiv.org/abs/2311.13858
Autor:
Casas, J. M., Bonavera, L., González-Nuevo, J., Puglisi, G., Baccigalupi, C., Cueli, M. M., Crespo, D., González-Gutiérrez, C., de Cos, F. J.
Recovering the polarized cosmic microwave background (CMB) is crucial for shading light on Cosmic Inflation. Methods with different characteristics should be developed and optimized. We aim to use a neural network called CENN and train it for recover
Externí odkaz:
http://arxiv.org/abs/2310.07590
Publikováno v:
Quant. Inf. Proc. 23 (2024) 2, 56
Quantum entanglement and quantum entropy are crucial concepts in the study of multipartite quantum systems. In this work we show how the notion of concurrence vector, re-expressed in a particularly useful form, provides new insights and computational
Externí odkaz:
http://arxiv.org/abs/2307.05205
Publikováno v:
A&A 686, A191 (2024)
This paper is the third in a series on submillimeter galaxy magnification bias, focusing on the tomographic scenario. It refines the methodology used to constrain the halo occupation distribution model and cosmological parameters within a flat $\Lamb
Externí odkaz:
http://arxiv.org/abs/2305.13836
The measurement of the cross-correlation function is crucial to assess magnification bias in galaxy surveys. Previous works used mini-tile subsampling, but accurately determining the integral constraint (IC) correction for unbiased estimation is chal
Externí odkaz:
http://arxiv.org/abs/2305.13834