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Four-dimensional cosmology from dilaton coupled quantum matter in two dimensions
Tomoko Kadoyoshi, Shin'ichi Nojiri, Sergei D. Odintsov
The reduction of 4D Einstein gravity with minimal scalars leads to specific 2D dilaton gravity with dilaton coupled scalars. Applying s-wave and large approximation (where…
On the instability of effective potential for non-abelian toroidal D-brane
Shin'ichi Nojiri, Sergei D. Odintsov
We calculate the one-loop effective potential for the toroidal non-abelian D-brane in the constant magnetic SU(2) gauge field. The study of its properties shows that the potential…
Vacuum polarization of supersymmetric D-brane in the constant electromagnetic field
Tomoko Kadoyoshi, Shin'ichi Nojiri, Sergei D. Odintsov +1
We study the vacuum polarization of supersymmetric toroidal D-brane placed in the constant electromagnetic field. Explicit calculation of the one-loop effective potential is perfor…
Dynamical symmetry breaking in the external gravitational and constant magnetic fields
T. Inagaki, S. D. Odintsov, Yu. I. Shil'nov
We investigate the effects of the external gravitational and constant magnetic fields to the dynamical symmetrybreaking. As simple models of the dynamical symmetry breaking we cons…
Trace Anomaly Induced Effective Action and Hawking Radiation for 2d Dilatonic Supergravity
Shin'ichi Nojiri, Sergei D. Odintsov
We construct the theory of 2d dilatonic supergravity(SG) with matter and dilaton supermultiplets coupled to dilaton functions. Trace anomaly and induced effective action for matter…
Trace anomaly induced effective action for 2D and 4D dilaton coupled scalars
Shin'ichi Nojiri, Sergei D. Odintsov
The spherically symmetric reduction of higher dimensional Einstein-scalar theory leads to lower dimensional dilatonic gravity with dilaton coupled scalar (for example, from 4D to 2…