Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Mladenov, Stefan"'
We study the quantum entanglement of coupled Pais-Uhlenbeck oscillators using the formalism of thermo-field dynamics. The entanglement entropy is computed for the specific cases of two and a ring of $N$ coupled Pais-Uhlenbeck oscillators of fourth or
Externí odkaz:
http://arxiv.org/abs/1607.07807
We examine the JEM-EUSO sensitivity to gravity effects in the context of Randall-Sundrum (RS) model with a single extra dimension and small curvature of the metric. Exchanges of reggeized Kaluza-Klein gravitons in the $t$-channel contribute to the in
Externí odkaz:
http://arxiv.org/abs/1511.07196
Publikováno v:
Fortschr. Phys. 64, 657-673 (2016)
In this work we obtain the non-abelian T-dual geometry of the well-known Pilch-Warner supergravity solution in its infrared point. We derive the dual metric and the NS two-form by gauging the isometry group of the initial theory and integrating out t
Externí odkaz:
http://arxiv.org/abs/1511.00269
Autor:
Vankova, Galina, Mladenov, Stefan, Bogomilov, Marian, Tsenov, Roumen, Bertaina, Mario, Santangelo, Andrea
The ultra high energy cosmic neutrinos are powerful astrophysical probes for both astrophysical mechanisms of particle acceleration and fundamental interactions. They open a window into the very distant and high-energy Universe that is difficult to a
Externí odkaz:
http://arxiv.org/abs/1509.05995
Autor:
Mishonov, Todor M., Zahariev, Nedeltcho I., Topchiyska, Rositsa V., Lazov, Boian V., Mladenov, Stefan B., Varonov, Albert M.
Static distributions of temperature and wind velocity at the transition region are calculated within the framework of magnetohydrodynamics (MHD) of completely ionized hydrogen plasma. The numerical solution of the derived equations gives the width of
Externí odkaz:
http://arxiv.org/abs/1103.2233