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pro vyhledávání: '"Plastino, A. R."'
Unraveling the nature of dark matter (DM) stands as a primary objective in modern physics. Here we present evidence suggesting deviations from the collisionless Cold DM (CDM) paradigm. It arises from the radial distribution of stars in six Ultra Fain
Externí odkaz:
http://arxiv.org/abs/2407.16755
*** Context: The halos of low-mass galaxies may allow us to constrain the nature of dark matter (DM), but the kinematic measurements to diagnose the required properties are technically extremely challenging. However, the photometry of these systems i
Externí odkaz:
http://arxiv.org/abs/2407.16519
According to the current concordance cosmological model, the dark matter (DM) particles are collision-less and produce self-gravitating structures with a central cusp which, generally, is not observed. The observed density tends to a central plateau
Externí odkaz:
http://arxiv.org/abs/2307.01256
Publikováno v:
Annalen der Physik 2022
We investigate a variant of the SSH model consisting of an SSH chain with an embedded Aharonov-Bohm quantum ring. The embedded ring gives rise to domain wall states whose energy levels are in the band gap. The dependence of some of the states on the
Externí odkaz:
http://arxiv.org/abs/2209.02910
Polytropes have gained renewed interest because they account for several seemingly-disconnected observational properties of galaxies. Here we study if polytropes are also able to explain the stellar mass distribution within galaxies. We develop a cod
Externí odkaz:
http://arxiv.org/abs/2109.02615
Publikováno v:
Journal of Physics: Conference Series; 2024, Vol. 2839 Issue 1, p1-5, 5p
Publikováno v:
Phys. Rev. A 102, 052417 (2020)
Entanglement is at the core of quantum physics, playing a central role in quantum phenomena involving composite systems. According to the timeless picture of quantum dynamics, entanglement may also be essential for understanding the very origins of d
Externí odkaz:
http://arxiv.org/abs/2009.12451
Publikováno v:
PRD 2009, volume 100, 104042; https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.104042
The thermodynamic equilibrium condition for a static self-gravitating fluid in the Einstein theory is defined by the Tolman-Ehrenfest temperature law, $T{\sqrt {g_{00}(x^{i})}} = constant$, according to which the proper temperature depends explicitly
Externí odkaz:
http://arxiv.org/abs/1911.09060
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Publikováno v:
Astrophysical Journal Letters; 9/20/2024, Vol. 973 Issue 1, p1-8, 8p