Cosmology with positive and negative exponential potentials
نویسندگان
چکیده
منابع مشابه
Cosmology With Negative Potentials
We investigate cosmological evolution in models where the effective potential V (φ) may become negative for some values of the field φ. Phase portraits of such theories in space of variables (φ, φ̇,H) have several qualitatively new features as compared with phase portraits in the theories with V (φ) > 0. Cosmological evolution in models with potentials with a “stable” minimum at V (φ) < 0 is sim...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2002
ISSN: 0264-9381
DOI: 10.1088/0264-9381/19/21/309