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  • Seminar by Dimitrije Stepanenko
    qubits and implementing spin based quantum information processing The most straightforward and traditional way of controlling magnetic molecules is by applying an external magnetic field Unfortunately the quantum manipulation has to be performed on the very short spatial and temporal scales while the local application of rapidly varying magnetic field presents a challenging experimental problem At the nanoscale the preferred mechanism for control of quantum systems is through application of electric fields which are strong can be locally applied and rapidly switched We study molecular antiferromagnets in external electric fields using symmetry group arguments and a Hubbard model approach We identify a spin electric coupling caused by an interplay between spin exchange spin orbit interaction and the chirality of the underlying spin texture of the molecular nanomagnet While the general theory can predict a class of molecules in which the spin electric coupling is likely to appear the search for suitable qubit candidates will necessarily involve experimental work We therefore investigate the possible signatures of spin electric coupling in electron spin resonance and nuclear magnetic resonance spectroscopy as well as in the thermodynamic properties of candidate molecules Once found this coupling allows for the electric control of spin states e

    Original URL path: http://www.scl.rs/news/555-seminar-by-dimitrije-stepanenko (2016-02-10)
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  • SCL seminar by Jaksa Vucicevic
    2010 In this talk Jaksa Vucicevic presented his newly developed code for solving Hubbard and Anderson Impurity Models focusing primarily on numerical issues Further improvements and possible applications were discussed Mott metal insulator transition in Second Order Perturbation Theory News 12 February 2016 SCL Seminar by Jelena Smiljanic 12 January 2016 In memoriam Nikola Buric 28 December 2015 SCL Seminar by Milos Radonjic 25 December 2015 SCL Seminar by Milan

    Original URL path: http://www.scl.rs/news/580-scl-seminar-by-jaksa-vucicevic (2016-02-10)
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  • SCL seminar by Miroslav Micic
    of galaxies Numerical simulations are years away from connecting physical processes that control the dynamics on large scales megaparsec gigayear collision of galaxies and small scale subparsec megayear gas accretion star formation and morphology of the central galaxy In this seminar I will present the latest results from the numerical and semi analytical work devoted to the formation of the M sigma black holes in centers of quasars and massive

    Original URL path: http://www.scl.rs/news/583-scl-seminar-by-miroslav-micic (2016-02-10)
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  • SCL seminar by Danica Stojiljkovic
    probability 1 p Two sites belong to the same cluster if they are connected by a path of nearest neighbor sites Occupied and empty sites may stand for very different physical properties For example sites can represent electrical conductors and insulators and that electrical current can flow between nearest neighbor conductor sites At low concentration p the conductor sites are either isolated or form small clusters of nearest neighbor sites Two conductor sites belong to the same cluster if they are connected by a path of nearest neighbor conductor sites and a current can flow between them At low p values the mixture is an insulator since a conducting path connecting opposite edges of the lattice does not exist At large p values on the other hand many conduction paths between opposite edges exist where electrical current can flow and the mixture is a conductor At some concentration in between therefore a threshold concentration pc must exist where for the first time electrical current can percolate from one edge to the other Below pc we have an insulator above pc we have a conductor The threshold concentration is called the percolation threshold or since it separates two different phases the

    Original URL path: http://www.scl.rs/news/611-scl-seminar-by-danica-stojiljkovic (2016-02-10)
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  • SCL seminar by Marija Mitrovic
    blog B92 blog social networks Facebook Myspace and consumer and product reviews portals like Amazon IMDb and analyze the behavior of users whose identity is protected specifically the emotional content by using a specific set of techniques for text processing and filtering The emotions are classed as positive negative or neutral Social Media data can be represented by bipartite networks and their Projections and systematical detection of communities are based

    Original URL path: http://www.scl.rs/news/613-scl-seminar-by-marija-mitrovic (2016-02-10)
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  • Second seminar on percolation
    second of two seminar talks Introduction to Percolation Theory The second part was dedicated to deriving the exact solutions for 1D and Bethe lattice and to deriving relations between critical coefficients News 12 February 2016 SCL Seminar by Jelena Smiljanic 12 January 2016 In memoriam Nikola Buric 28 December 2015 SCL Seminar by Milos Radonjic 25 December 2015 SCL Seminar by Milan Radonjic 18 December 2015 SCL Seminar by Nenad

    Original URL path: http://www.scl.rs/news/618-second-seminar-on-percolation (2016-02-10)
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  • SCL seminar by Jelena Grujic
    human subjects on a large network The most striking result is that players do not follow a single behavioral pattern We find a high percentage of pure or almost pure defectors and a sensibly smaller one of pure or almost pure cooperators which cannot cluster The remaining players are more or less prone to cooperate depending on the amount of cooperators in their neighborhood This heterogeneity of behavior leads to

    Original URL path: http://www.scl.rs/news/643-scl-seminar-by-jelena-grujic (2016-02-10)
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  • SCL seminar by Nikola Buric
    quantum systems are two examples of problems where the dynamic systems modeling of stochastic equations with delay and important problems are solved by analyzing the stability and bifurcation In this seminar we will describe some results of applying these methods in analyzing these problems Stochastic Resonance and Coherence Resonance Local Bifurcations of equilibria in delayed coupled type II excitable systems The dynamics of the system typical of neurons with noise

    Original URL path: http://www.scl.rs/news/646-scl-seminar-by-nikola-buric-1 (2016-02-10)
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