Zobrazeno 1 - 10
of 2 811
pro vyhledávání: '"A Bertolami"'
Autor:
Bernardini, Alex E., Bertolami, Orfeu
Extending the phase-space description of the Weyl-Wigner quantum mechanics to a subset of non-linear Hamiltonians in position and momentum, gaussian functions are identified as the quantum ground state. Once a Hamiltonian, $H^{W}(q,\,p)$, is constrai
Externí odkaz:
http://arxiv.org/abs/2409.16377
Autor:
De Gerónimo, Francisco C., Bertolami, Marcelo M. Miller, Battich, Tiara, Tang, Xiaodong, Catelan, Márcio, Córsico, Alejandro H., Li, Yunjun, Fang, Xiao, Althaus, Leandro G.
Recent determinations of the total rate of the 12C+12C nuclear reaction show non-negligible differences with the reference reaction rate commonly used in previous stellar simulations. In addition, the current uncertainties in determining each exit ch
Externí odkaz:
http://arxiv.org/abs/2409.10793
The properties of metric perturbations are determined in the context of an expanding Universe governed by a modified theory of gravity with a non-minimal coupling between curvature and matter. We analyse the dynamics of the 6 components of a general
Externí odkaz:
http://arxiv.org/abs/2409.07625
Autor:
Bernardini, Alex E., Bertolami, Orfeu
The extension of the phase-space Weyl-Wigner quantum mechanics to the subset of Hamiltonians in the form of $H(q,\,p) = {K}(p) + {V}(q)$ (with $K(p)$ replacing single $p^2$ contributions) is revisited. Deviations from classical and stationary profile
Externí odkaz:
http://arxiv.org/abs/2409.04291
Autor:
Mantziris, Andreas, Bertolami, Orfeu
The study of interactions between dark matter and the Higgs field opens an exciting connection between cosmology and particle physics, since such scenarios can impact the features of dark matter as well as interfering with the spontaneous breaking of
Externí odkaz:
http://arxiv.org/abs/2407.18845
Publikováno v:
Journal of Cosmology and Astroparticle Physics, Volume 2024, October 2024
Among the open problems in fundamental physics, few are as conceptually significant as the measurement problem in Quantum Mechanics. One of the proposed solutions to this problem is the Continuous Spontaneous Localization (CSL) model, which introduce
Externí odkaz:
http://arxiv.org/abs/2406.04463
Autor:
Bertolami, O.
The unfolding climate crisis is a physical manifestation of the damage that market economy, driven by the high intensity consumption of fossil fuels, has inflicted on the Earth System and on the stability conditions that were established by a complex
Externí odkaz:
http://arxiv.org/abs/2404.14041
Autor:
Venturini, Julia, Ronco, María Paula, Guilera, Octavio M., Haldemann, Jonas, Mordasini, Christoph, Bertolami, Marcelo M. Miller
Publikováno v:
A&A 686, L9 (2024)
The radius valley separating super-Earths from mini-Neptunes is a fundamental benchmark for theories of planet formation and evolution. Observations show that the location of the radius valley decreases with decreasing stellar mass and with increasin
Externí odkaz:
http://arxiv.org/abs/2404.01967
Publikováno v:
JCAP 06 (2024) 025
The presently open problem of the Hubble tension is shown to be removed in the context of a modified theory of gravity with a non-minimal coupling between curvature and matter. By evolving the cosmological parameters that match the cosmic microwave b
Externí odkaz:
http://arxiv.org/abs/2403.11683
Publikováno v:
Universe 2024, 10(7), 271
In this work, we discuss the de Sitter swampland conjectures in the context of the generalized Chaplygin-inspired inflationary model. We demonstrate that these conjectures can be satisfied, but only in the region of the parameter space far away from
Externí odkaz:
http://arxiv.org/abs/2402.19051