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9 papers · 1 filter
Pairing correlations and transitions in nuclear systems
A. Belic, D. J. Dean, M. Hjorth-Jensen
We discuss several pairing-related phenomena in nuclear systems, ranging from superfluidity in neutron stars to the gradual breaking of pairs in finite nuclei. We describe recent e…
Path Integrals in Noncommutative Quantum Mechanics
Branko Dragovich, Zoran Rakic
Extension of Feynman's path integral to quantum mechanics of noncommuting spatial coordinates is considered. The corresponding formalism for noncommutative classical dynamics relat…
3D gravity with torsion as a Chern-Simons gauge theory
M. Blagojevic, M. Vasilic
We show that topological 3D gravity with torsion can be formulated as a Chern-Simons gauge theory, provided a specific parameter, known as the effective cosmological constant, is n…
Solitonic lattices in photorefractive crystals
M. Petrovic, D. Traeger, A. Strinic +3
Two-dimensional spatial solitonic lattices are generated and investigated experimentally and numerically in an SBN:Ce crystal. An enhanced stability of these lattices is achieved b…
Asymptotic dynamics in 3D gravity with torsion
M. Blagojevic, M. Vasilic
We study the nature of boundary dynamics in the teleparallel 3D gravity. The asymptotic field equations with anti-de Sitter boundary conditions yield only two non-trivial boundary…
Bosonic string theory in background fields by canonical methods
Branislav Sazdovic
We investigate classical dynamics of the bosonic string in the background metric, antisymmetric and dilaton fields. We use canonical methods to find Hamiltonian in terms of energy-…