Zobrazeno 1 - 5
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pro vyhledávání: '"Zlatev, Ivaylo"'
Autor:
Zlatev, Ivaylo, Steinhardt, Paul J.
Publikováno v:
Phys.Lett.B459:570-574,1999
Recently, we introduced the notion of "tracker fields," a form of quintessence which has an attractor-like solution. Using this concept, we showed how to construct models in which the ratio of quintessence to matter densities today is independent of
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906481
Publikováno v:
Phys.Rev.D59:123504,1999
A substantial fraction of the energy density of the universe may consist of quintessence in the form of a slowly-rolling scalar field. Since the energy density of the scalar field generally decreases more slowly than the matter energy density, it app
Externí odkaz:
http://arxiv.org/abs/astro-ph/9812313
Publikováno v:
Phys.Rev.Lett.82:896-899,1999
Recent observations suggest that a large fraction of the energy density of the universe has negative pressure. One explanation is vacuum energy density; another is quintessence in the form of a scalar field slowly evolving down a potential. In either
Externí odkaz:
http://arxiv.org/abs/astro-ph/9807002
Publikováno v:
Phys.Rev.D57:2152-2157,1998
Parametric resonance has been discussed as a mechanism for copious particle production following inflation. Here we present a simple and intuitive calculational method for estimating the efficiency of parametric amplification as a function of paramet
Externí odkaz:
http://arxiv.org/abs/astro-ph/9709006
We construct the most general SO(4,2) hydrogen atom coherent states which are the counterpart of Schr\"{o}dinger's harmonic oscillator coherent states. We show that these states cannot be localized and cannot follow the classical orbits. Thus, Schr\"
Externí odkaz:
http://arxiv.org/abs/nucl-th/9311006