400 citations
- A. Alikhanyan National LaboratoryAM26 papers
- Universidade Federal da ParaíbaBR14 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT8 papers
- Joint Institute for Nuclear ResearchRU7 papers
- University of RostockDE6 papers
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- Yerevan State Linguistic UniversityAM5 papers
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4 papers · 2 filters
First order flows for N=2 extremal black holes and duality invariants
Anna Ceresole, Gianguido Dall'Agata, Sergio Ferrara +1
We derive explicitly the superpotential W for the non-BPS branch of N=2 extremal black holes in terms of duality invariants of special geometry. Although this is done for a one-mod…
Casimir densities for a plate in de Sitter spacetime
A. A. Saharian, T. A. Vardanyan
Wightman function, the vacuum expectation values of the field squared and the energy-momentum tensor are investigated for a scalar field with general curvature coupling parameter i…
Vacuum polarization by a cosmic string in de Sitter spacetime
E. R. Bezerra de Mello, A. A. Saharian
In this paper we investigate the vacuum polarization effect associated with a quantum massive scalar field in a higher dimensional de Sitter spacetime in the presence of a cosmic s…
Second Hopf map and supersymmetric mechanics with Yang monopole
M. Gonzales, Z. Kuznetsova, A. Nersessian +2
We propose to use the second Hopf map for the reduction (via SU(2) group action) of the eight-dimensional N=8 supersymmetric mechanics to five-dimensional supersymmetric systems sp…