Zobrazeno 1 - 10
of 31
pro vyhledávání: '"De Vega, Hector"'
Autor:
de Vega, Hector J., Sanchez, Norma G.
Publikováno v:
Universe 2022, 8(3), 154
We generalize the Thomas-Fermi approach to galaxy structure to include self-consistently and non-linearly central supermassive black holes. This approach naturally incorporates the quantum pressure of the warm dark matter (WDM) particles and shows it
Externí odkaz:
http://arxiv.org/abs/1705.05418
Autor:
de Vega, Hector J., Sanchez, Norma G.
Publikováno v:
Universe 2022, 8, 419. https://www.mdpi.com/2218-1997/8/8/419
Light scalars (as the axion) with mass m ~ 10^{-22} eV forming a Bose-Einstein condensate (BEC) exhibit a Jeans length in the kpc scale and were therefore proposed as dark matter (DM) candidates. Our treatment here is generic, independent of the part
Externí odkaz:
http://arxiv.org/abs/1401.1214
Autor:
de Vega, Hector J., Sanchez, Norma G.
Publikováno v:
Universe 2023, 9(4), 167
We uncover the general mechanism producing the dark energy(DE). This is only based on well known quantum physics and cosmology. We show that the observed DE originates from the cosmological quantum vacuum of light particles which provides a continuou
Externí odkaz:
http://arxiv.org/abs/astro-ph/0701212
Autor:
Boyanovsky, Daniel, de Vega, Hector J.
Publikováno v:
Nucl.Phys.A747:564-608,2005
We study the production of photons from a quark gluon plasma in local thermal equilibrium by introducing a non-perturbative formulation of the real time evolution of the density matrix. The main ingredient is the real time effective action for the el
Externí odkaz:
http://arxiv.org/abs/hep-ph/0311156
Autor:
De Vega, Hector
Publikováno v:
Chalonge School in Astrofundamental Physics, September 2002, NATO ASI., Italie (2003) 1-19
This is a pedagogical introduction to early cosmology and the host of fundamental physics involved in it (particle physics, grand unification and general relativity). Inflation and the inflaton field are the central theme of this review. The quantum
Externí odkaz:
http://arxiv.org/abs/astro-ph/0307477
Publikováno v:
Phys.Rev.D65:045007,2002
The non-equilibrium dynamics of a Yukawa theory with N fermions coupled to a scalar field is studied in the large N limit with the goal of comparing the dynamics predicted from the renormalization group improved effective potential to that obtained i
Externí odkaz:
http://arxiv.org/abs/hep-ph/0108113
Autor:
de Vega, Hector J.1 (AUTHOR), Sanchez, Norma G.2 (AUTHOR) Norma.Sanchez@obspm.fr
Publikováno v:
Universe (2218-1997). Mar2022, Vol. 8 Issue 3, p154-154. 38p.
Publikováno v:
Phys.Rev.D61:065002,2000
The anomalous pseudoscalar-photon vertex is studied in real time in and out of equilibrium in a constituent quark model. The goal is to understand the in-medium modifications of this vertex, exploring the possibility of enhanced isospin breaking by e
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905374
Publikováno v:
Phys.Rev.D58:125009,1998
The real time evolution of field condensates with soft length scales k^{-1}>(eT)^{-1} is solved in hot scalar electrodynamics, with a view towards understanding relaxational phenomena in the QGP and the electroweak plasma. We find that transverse gau
Externí odkaz:
http://arxiv.org/abs/hep-ph/9802370
Publikováno v:
Phys.Rev.D57:3653-3669,1998
We propose to study the non-equilibrium features of heavy-ion collisions by following the evolution of an initial state with a large number of quanta with a distribution around a momentum |\vec k_0| corresponding to a thin spherical shell in momentum
Externí odkaz:
http://arxiv.org/abs/hep-ph/9711258