Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Barenboim, Gabriela"'
We consider the possibility that the cosmic neutrino background might have a nonthermal spectrum, and investigate its effect on cosmological parameters relative to standard $\Lambda$-Cold Dark Matter ($\Lambda$CDM) cosmology. As a specific model, we
Externí odkaz:
http://arxiv.org/abs/2407.18102
The details of the minimal cosmological standard model (MCSM) proposed in Ref.~\cite{Barenboim:2024akt} are discussed. The model is based on the scale-symmetry and the global Peccei-Quinn(PQ) symmetry with a key assumption that the latter is broken o
Externí odkaz:
http://arxiv.org/abs/2403.08675
We propose a novel minimal scenario which simultaneously addresses the following theoretical/cosmological/phenomenological puzzles: (i) the origin of scales, (ii) primordial inflation, (iii) matter-antimatter asymmetry, (iv) tiny neutrino masses, (v)
Externí odkaz:
http://arxiv.org/abs/2403.05390
Autor:
Barenboim, Gabriela, Gago, Alberto M.
Physical systems in real life are inextricably linked to their surroundings and never completely separated from them. Truly closed systems do not exist. The phenomenon of decoherence, which is brought about by the interaction with the environment, re
Externí odkaz:
http://arxiv.org/abs/2402.03438
We use Google's MusicVAE, a Variational Auto-Encoder with a 512-dimensional latent space to represent a few bars of music, and organize the latent dimensions according to their relevance in describing music. We find that, on average, most latent neur
Externí odkaz:
http://arxiv.org/abs/2308.00015
Based on the results of a previous analysis of the Markovian master equation for the irreversible evolution of an open system embedded in de Sitter space, we include in the cosmological Friedmann equations a contribution from the presence of a physic
Externí odkaz:
http://arxiv.org/abs/2307.04803
Publikováno v:
Phys. Rev. D 108, 123530 (2023)
We consider the local physics of an open quantum system embedded in an expanding three-dimensional space $\mathbf x$, evolving in cosmological time $t$, weakly coupled to a massless quantum field. We derive the corresponding Markovian master equation
Externí odkaz:
http://arxiv.org/abs/2307.04800
In this paper we place new bounds on CPT violation in the solar neutrino sector analyzing the results from solar experiments and KamLAND. We also discuss the sensitivity of the next-generation experiments DUNE and Hyper-Kamiokande, which will provide
Externí odkaz:
http://arxiv.org/abs/2305.06384
Publikováno v:
JCAP 12 (2021) 12, 026
The evolution of the universe prior to Big Bang Nucleosynthesis could have gone through a phase of early matter domination (EMD) which enhanced the growth of small-scale dark matter structure. If EMD was long enough, self-gravitating objects formed p
Externí odkaz:
http://arxiv.org/abs/2107.10293
Publikováno v:
SciPost Phys. 11, 014 (2021)
We explore whether Neural Networks (NNs) can {\it discover} the presence of symmetries as they learn to perform a task. For this, we train hundreds of NNs on a {\it decoy task} based on well-controlled Physics templates, where no information on symme
Externí odkaz:
http://arxiv.org/abs/2103.06115