Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Dąbrowski Mariusz P."'
Autor:
Dabrowski, Mariusz P.
Publikováno v:
Entropy 2024, 26(10), 814
We present a comparative analysis of the plethora of nonextensive and/or nonadditive entropies which go beyond the standard Boltzmann-Gibbs formulation. After defining the basic notions of additivity, extensivity, and composability, we discuss the pr
Externí odkaz:
http://arxiv.org/abs/2409.00802
We apply the full set of most update dynamical and geometrical data in cosmology to the nonextensive Barrow entropic holographic dark energy. We show that the data point towards an extensive Gibbs-like entropic behaviour for the cosmological horizons
Externí odkaz:
http://arxiv.org/abs/2303.11680
Publikováno v:
Class. Quantum Grav. 40, 145001 (2023)
The effect of the generalized uncertainty principle (GUP) on nonextensive thermodynamics applied to black holes, as well as the sparsity of the radiation at different temperatures associated with each nonextensive entropy, is investigated. We examine
Externí odkaz:
http://arxiv.org/abs/2301.00609
Publikováno v:
Eur. Phys. J. C (2023) 83:169
Hawking temperature has been widely utilised in the literature as the temperature that corresponds to various nonextensive entropies. In this study, we analyze the compatibility of the Hawking temperature with the nonextensive entropies. We demonstra
Externí odkaz:
http://arxiv.org/abs/2208.04473
We consider observational consequences of the entanglement between our universe and a hypothetical twin anti-universe in the third quantization scheme of the canonical quantum gravity. Based on our previous investigations we select some special form
Externí odkaz:
http://arxiv.org/abs/2203.07069
Publikováno v:
EPJ Web of Conferences, Vol 126, p 04012 (2016)
We present basic ideas of the varying speed of light cosmology, its formulation, benefits and problems. We relate it to the theories of varying fine structure constants and discuss some new tests (redshift drift and angular diameter distance maximum)
Externí odkaz:
https://doaj.org/article/c4dd369877c74426bbddd8ab4d6421c5
Autor:
Da̧browski, Mariusz P., Boettcher, Agnieszka, Brudek, Wojciech, Malesa, Janusz, Muszyński, Dominik, Potempski, Sławomir, Skrzypek, Eleonora, Skrzypek, Maciej, Sierchuła, Jakub
Publikováno v:
In Nuclear Engineering and Design 1 August 2024 424
Recently, a new cosmological framework, dubbed Ricci Cosmology, has been proposed. Such a framework has emerged from the study of relativistic dynamics of fluids out of equilibrium in a curved background and is characterised by the presence of deviat
Externí odkaz:
http://arxiv.org/abs/2105.10933
Publikováno v:
Phys. Rev. D 103, 043507 (2021)
Using the 3rd quantization formalism we study the quantum entanglement of universes created in pairs within the framework of standard homogeneous and isotropic cosmology. In particular, we investigate entanglement quantities (entropy, temperature) ar
Externí odkaz:
http://arxiv.org/abs/2009.14058
Publikováno v:
Phys. Rev. D 102, 064047 (2020)
A novel fractal structure for the cosmological horizon, inspired by COVID-19 geometry, which results in a modified area entropy, is applied to cosmology in order to serve dark energy. The constraints based on a complete set of observational data are
Externí odkaz:
http://arxiv.org/abs/2009.08306