Abstract:
We consider classical aspects of the dynamics of scalar fields with nonpositive-definite potentials in the Friedmann cosmology. Such models appear as effective local models in the framework of nonlocal models related to string field theory. In an effective local approximation after a suitable field redefinition, the Higgs potential with a negative effective cosmological constant appears in these models. A special feature of considered models is an absence of the reheating phase, instead of which phase of regime change from expansion to contraction appears. We study the behavior of the model near the point of regime change.
Keywords:
cosmology, Higgs potential, tachyon, string field theory.
Citation:
I. Ya. Aref'eva, N. V. Bulatov, R. V. Gorbachev, “Friedmann cosmology with nonpositive-definite Higgs potentials”, TMF, 173:1 (2012), 160–176; Theoret. and Math. Phys., 173:1 (2012), 1466–1480
This publication is cited in the following 5 articles:
Pozdeeva E.O. Skugoreva M.A. Toporensky A.V. Vernov S.Yu., “Possible evolution of a bouncing universe in cosmological models with non-minimally coupled scalar fields”, J. Cosmol. Astropart. Phys., 2016, no. 12, 006
Ekaterina Pozdeeva, Sergey Vernov, V.A. Andrianov, V.A. Matveev, V.A. Rubakov, V.T. Kim, A.A. Andrianov, M.D. Fitkevich, “Integrable cosmological models with non-minimal coupling and bounce solutions”, EPJ Web Conf., 125 (2016), 03008
Alimi J.M., Golubtsova A.A., Reverdy V., “Elliptic Solutions of Generalized Brans-Dicke Gravity With a Non-Universal Coupling”, Eur. Phys. J. C, 74:10 (2014), 3125
Aref'eva I.Ya., Bulatov N.V., Gorbachev R.V., Vernov S.Yu., “Non-Minimally Coupled Cosmological Models With the Higgs-Like Potentials and Negative Cosmological Constant”, Class. Quantum Gravity, 31:6 (2014), 065007