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2014-03-10
04:38
MPPhys - A many-particle simulation package for computational physics education / Müller, Thomas
In a first course to classical mechanics elementary physical processes like elastic two-body collisions, the mass-spring model, or the gravitational two-body problem are discussed in detail. The continuation to many-body systems, however, is defered to graduate courses although the underlying equations of motion are essentially the same and although there is a strong motivation for high- school students in particular because of the use of particle systems in computer games. [...]
arXiv:1403.1695.- 2014 - 10 p. - Published in : Comput. Phys. Commun. 185 (2014) 1100-1108 External link: Preprint

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2014-03-10
04:37
Mass Renormalization in Lorentz-violating Scalar Field Theory / Carvalho, Paulo R S
In this work we evaluate the $\gamma_{m}$ function corresponding to mass renormalization for O($N$) scalar field theory with Lorentz violation. We calculate this function up to two-loop order for a theory renormalized utilizing the counterterm method in the minimal subtraction scheme with Feynman diagrams regularized using dimensional regularization..
arXiv:1403.1826.- 2014 - 11 p. - Published in : Physics Letters. B, v. 726, p. 850-855, 2013 External link: Preprint

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2014-03-10
04:35
Emission from the Galaxy NGC 1275 at High and Very High Energies and its Origin / Sinitsyna, V G ; Sinitsyna, V Yu
The Seyfert galaxy NGC 1275 is the central, dominant galaxy in the Perseus cluster of galaxies. NGC1275 is known as a powerful source of radio and X-ray emission. [...]
arXiv:1403.1740.- 2014 - Published in : Astronomy Letters, 2014, Volume 40, Issue 2-3, pp.75-85 External link: Preprint

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2014-03-07
04:30
Binary birth-death dynamics and the expansion of cooperation by means of self-organized growth / Szolnoki, Attila ; Antonioni, Alberto ; Tomassini, Marco ; Perc, Matjaz
Natural selection favors the more successful individuals. This is the elementary premise that pervades common models of evolution. [...]
arXiv:1403.1572.- 2014 - two-column p. - Published in : Europhys. Lett. 105 (2014) 48001 External link: Preprint

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2014-03-07
04:30
Scattering of electrons by ionized impurities in semiconductors: quantum-mechanical approach to third body exclusion / Pozdnyakov, Dmitry
As applied to the numerical simulation of electron transport and scattering processes in semiconductors an efficient model describing the scattering of electrons by the ionized impurities is proposed. On the example of GaAs at 77 and 300 K and Si at 300 K the dependencies of low-field electron mobility on the donor impurity concentration in the semiconductors are calculated in the framework of proposed model as well as in the framework of such most frequently used applied models as the Conwel-Weisskopf model and the Brooks-Herring one. [...]
arXiv:1403.1487.- 2014 - 19 p. - Published in : Journal of Computational Electronics 13(1), 338-351 (2014) External link: Preprint

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2014-03-07
04:30
International Transmission of Shocks and Fragility of a Bank Network / Feng, Xiaobing ; Jo, Woo Seong ; Kim, Beom Jun
The weighted and directed network of countries based on the number of overseas banks is analyzed in terms of its fragility to the banking crisis of one country. We use two different models to describe transmission of shocks, one local and the other global. [...]
arXiv:1403.1363.- 2014 - 9 p. - Published in : Physica A 403 (2014) 120-129 External link: Preprint

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2014-03-07
04:30
Realistic Thermodynamic and Statistical-Mechanical Measures for Neural Synchronization / Kim, Sang-Yoon ; Lim, Woochang
Synchronized brain rhythms, associated with diverse cognitive functions, have been observed in electrical recordings of brain activity. Neural synchronization may be well described by using the population-averaged global potential $V_G$ in computational neuroscience. [...]
arXiv:1403.1255.- 2014 - Published in : Journal of Neuroscience Methods 226 (2014) 161-170 External link: Preprint

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2014-03-07
04:26
Multi-black hole solutions in cosmological Einstein-Maxwell-dilaton theory / Maki, Takuya ; Shiraishi, Kiyoshi
Adopting a simple ansatz, we find exact solutions to the Einstein-Maxwell-dilaton equations, which stand for the multi-black hole configuration with maximal charge in a cosmological metric and dilaton field background driven by a cosmological term..
arXiv:1403.1320.- 2014 - 10 p. - Published in : No. 10 (1993) 2171-2178 External link: Preprint

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2014-03-07
04:26
Ya. B. Zeldovich (1914-1987): Chemist, Nuclear Physicist, Cosmologist / Sahni, Varun
Ya.B. Zeldovich was a pre-eminent Soviet physicist whose seminal contributions spanned many fields ranging from physical chemistry to nuclear and particle physics, and finally astrophysics and cosmology. [...]
arXiv:1403.1537.- 2014 - 23 p. External link: Preprint

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2014-03-07
04:26
Black hole atom as a dark matter particle candidate / Dokuchaev, V I ; Eroshenko, Yu N
We propose the new dark matter particle candidate - the "black hole atom", which is an atom with the charged black hole as an atomic nucleus and electrons in the bound internal quantum states. As a simplified model we consider the the central Reissner-Nordstrom black hole with the electric charge neutralized by the internal electrons in bound quantum states. [...]
arXiv:1403.1375.- 2014 - 5 p. - Published in : Advances in High Energy Physics: 2014 (2014) , pp. 434539 External link: Preprint

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