Effective Hamiltonian for non-minimally coupled scalar fields
نویسندگان
چکیده
منابع مشابه
Cosmological scaling solutions of non-minimally coupled scalar fields
On one hand recent cosmological observations, and particuarly the Hubble diagram for Type Ia supernovae [1] have led to the idea that the universe may be dominated by a component with negative pressure [2] and thus that today the universe is accelerating. Such a component can also, if one sticks to the prediction of inflation that Ω = 1, account for the “missing energy”. Yet, many candidates ha...
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Non-minimally coupled scalar fields have been extensively used in the literature to account for higher loop quantum corrections to the theory of scalar fields in the general relativity theory of gravitation (see, e.g., [1] and Refs. therein). However, contrary to the minimally coupled case, quantization of such fields in the framework of quantum field theories on a classical curved background m...
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A search for traversable wormhole solutions to the gravitational field equations with realistic matter has been for long, and is still remaining to be, one of the most intriguing challenges in gravitational studies. One of attractive features of wormholes is their ability to support electric or magnetic “charge without charge” [1] by letting the lines of force thread from one spatial asymptotic...
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Takashi Torii ‡ Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152, Japan (June 4, 2005) In higher-curvature inflation models (R + αnR ), we study a parametric preheating of a scalar field χ coupled non-minimally to a spacetime curvature R (ξRχ). In the case of R-inflation model, efficient preheating becomes possible for rather small values of ξ, i.e. |ξ|∼ several. Although...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2008
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-008-0653-1