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4,958 research outcomes, page 1 of 496
  • publication . Article . Preprint . 2015
    Open Access
    Authors:
    Thanos Manos; Marko Robnik;
    Persistent Identifiers
    Publisher: American Physical Society (APS)
    Country: Germany

    We study the quantum kicked rotator in the classically fully chaotic regime $K=10$ and for various values of the quantum parameter $k$ using Izrailev's $N$-dimensional model for various $N \le 3000$, which in the limit $N \rightarrow \infty$ tends to the exact quantized...

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  • publication . Preprint . Article . 2006
    Open Access
    Authors:
    N. S. Mankoc Borstnik; Holger Bech Nielsen;
    Persistent Identifiers
    Publisher: Elsevier BV

    The genuine Kaluza-Klein-like theories (with no fields in addition to gravity) have difficulties with the existence of massless spinors after the ompactification of some of dimensions of space\cite{witten}. We assume a $M^{(1+3)} \times$ a flat finite disk in $(1+5)$-di...

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  • publication . Article . Preprint . 2005
    Open Access English
    Authors:
    Anton Ramšak; John H. Jefferson;
    Persistent Identifiers

    Shot noise reduction in quantum wires is interpreted within the model for the ''0.7 structure'' in the conductance of near perfect quantum wires [T. Rejec, A. Ramsak, and J.H. Jefferson, Phys. Rev. B 62, 12985 (2000)]. It is shown how the Fano factor structure is relate...

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  • publication . Preprint . Article . 2010
    Open Access English
    Authors:
    Matjaz Perc;
    Persistent Identifiers

    We study the evolution of Slovenia's scientific collaboration network from 1960 till present with a yearly resolution. For each year the network was constructed from publication records of Slovene scientists, whereby two were connected if, up to the given year inclusive...

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  • publication . Preprint . 2013
    Open Access English
    Authors:
    Wadati, H.; Yoshimatsu, K.; Kumigashira, H.; Oshima, M.; Sugiyama, T.; Ikenaga, E.; Fujimori, A.; Mravlje, J.; Georges, A.; Radetinac, A.; ...

    We investigate the electronic structure of a perovskite-type Pauli paramagnet SrMoO3 (t2g2) thin film using hard x-ray photoemission spectroscopy and compare the results to the realistic calculations that combine the density functional theory within the local-density ap...

  • publication . Article . Preprint . 2003
    Open Access
    Authors:
    Rok Žitko; Janez Bonča;
    Persistent Identifiers

    We develop a non-perturbative numerical method to study tunneling of a single electron through an Aharonov-Bohm ring where several strongly interacting electrons are bound. Inelastic processes and spin-flip scattering are taken into account. The method is applied to stu...

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  • publication . Article . Preprint . 2015
    Open Access English
    Authors:
    Jonathan L. Gross; Toufik Mansour; Thomas W. Tucker; David G. L. Wang;
    Persistent Identifiers
    Publisher: Društvo matematikov, fizikov in astronomov
    Country: Slovenia

    We prove that the genus polynomials of the graphs called iterated claws are real-rooted. This continues our work directed toward the 25-year-old conjecture that the genus distribution of every graph is log-concave. We have previously established log-concavity for sequen...

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  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Peter Gabrovsek; Darko Aleksovski; Igor Mozetič; Miha Grčar;
    Persistent Identifiers
    Publisher: Public Library of Science (PLoS)
    Country: Slovenia
    Project: EC | SIMPOL (610704), EC | DOLFINS (640772)

    We investigate the relationship between social media, Twitter in particular, and stock market. We provide an in-depth analysis of the Twitter volume and sentiment about the 30 companies in the Dow Jones Industrial Average index, over a period of three years. We focus on...

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  • publication . Other literature type . Preprint . Article . 2001
    Open Access
    Authors:
    Mirjam Cvetič; Gary Shiu; Angel M. Uranga;
    Persistent Identifiers
    Publisher: Elsevier BV

    We construct N=1 supersymmetric four-dimensional orientifolds of type IIA on T^6/(Z_2 x Z_2) with D6-branes intersecting at angles. The use of D6-branes not fully aligned with the O6-planes in the model allows for a construction of many supersymmetric models with chiral...

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  • publication . Article . Preprint . 2011
    Open Access English
    Authors:
    Jianlei Zhang; Chunyan Zhang; Tianguang Chu; Matjaž Perc;
    Persistent Identifiers
    Publisher: Public Library of Science

    We study the evolution of cooperation among selfish individuals in the stochastic strategy spatial prisoner's dilemma game. We equip players with the particle swarm optimization technique, and find that it may lead to highly cooperative states even if the temptations to...

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4,958 research outcomes, page 1 of 496