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2015-04-24
07:49
Field Equations in the Complex Quaternion Spaces / Weng, Zi-Hua
The paper aims to adopt the complex quaternion and octonion to formulate the field equations for electromagnetic and gravitational fields. Applying the octonionic representation enables one single definition to combine some physics contents of two fields, which were considered to be independent of each other in the past. [...]
arXiv:1504.06182.- 2015 - Published in : Vol.: 45026 (2014) , pp. 6 External link: Preprint

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2015-04-24
07:49
Yarkovsky effect in Generalized Photogravitational 3-Bodies Problem / Ershkov, Sergey V
Here is presented a generalization of photogravitational restricted 3-bodies problem to the case of influence of Yarkovsky effect, which is known as reason of additional infinitesimal acceleration of a small bodies in the space (due to anisotropic re-emission of absorbed energy from the sun, other stellar sources). Asteroid is supposed to move under the influence of gravitational forces from 2 massive bodies (which are rotating around their common centre of masses on Kepler trajectories), as well under the influence of pressure of light from both the primaries. [...]
arXiv:1504.06181.- 2015 - 12 p. 31 Mar 2015 - Published in : Planetary and Space Science Volume 73, Issue 1, December 2012, Pages 221-223 External link: Preprint

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2015-04-24
07:49
Automated weighing by sequential inference in dynamic environments / Martin, A D ; Molteno, T C A
We demonstrate sequential mass inference of a suspended bag of milk powder from simulated measurements of the vertical force component at the pivot while the bag is being filled. We compare the predictions of various sequential inference methods both with and without a physics model to capture the system dynamics. [...]
arXiv:1504.06009.- 2015 - 5 p. - Published in : Automation, Robotics and Applications (ICARA), 2015 6th International Conference on, pp.274,278, 17-19 Feb. 2015 External link: Preprint

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2015-04-24
07:49
Nuclear polarization study: New frontiers for tests of QED in heavy highly charged ions / Volotka, Andrey V ; Plunien, Günter
A systematic investigation of the nuclear-polarization effects in one- and few-electron heavy ions is presented. The nuclear-polarization corrections in the zeroth and first orders in $1/Z$ are evaluated to the binding energies, the hyperfine splitting, and the bound-electron g factor. [...]
arXiv:1504.05888.- 2015 - 5 p. - Published in : Phys. Rev. Lett. 113 (2014) 023002 External link: Preprint

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2015-04-24
07:49
Many-electron QED corrections to the g factor of lithiumlike ions / Volotka, A V ; Glazov, D A ; Shabaev, V M ; Tupitsyn, I I ; Plunien, G
A rigorous QED evaluation of the two-photon exchange corrections to the g factor of lithiumlike ions is presented. The screened self-energy corrections are calculated for the intermediate-$Z$ region and its accuracy for the high-$Z$ region is essentially improved in comparison with that of previous calculations. [...]
arXiv:1504.05856.- 2015 - 5 p. - Published in : Phys. Rev. Lett. 112 (2014) 253004 External link: Preprint

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2015-04-24
07:49
A Study of Correlations in the Stock Market / Sharma, Chandradew ; Banerjee, Kinjal
We study the various sectors of the Bombay Stock Exchange(BSE) for a period of 8 years from April 2006 - March 2014. Using the data of daily returns of a period of eight years we make a direct model free analysis of the pattern of the sectorial indices movement and the correlations among them. [...]
arXiv:1504.05844.- 2015 - 12 p. 22 Apr 2015 - Published in : Physica A: Statistical Mechanics and its Applications (2015), pp. 321-330 External link: Preprint

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2015-04-24
07:49
Accessing electronic correlations by half-cycle pulses and time-resolved spectroscopy / Pavlyukh, Y ; Berakdar, J
Ultrashort non-resonant electromagnetic pulses applied to effective one-electron systems may operate on the electronic state as a position or momentum translation operator. As derived here, extension to many-body correlated systems exposes qualitatively new aspects. [...]
arXiv:1504.05458.- 2015 21 Apr 2015 - Published in : Phys. Rev. A 90 (2014) 053417 External link: Preprint

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2015-04-24
07:49
T-matrix in discrete oscillator representation / Vasilevsky, V S ; Soloha-Klymchak, M D
We investigate T-matrix for bound and continuous-spectrum states in the discrete oscillator representation. The investigation is carried out for a model problem - the particle in the field of a central potential. [...]
arXiv:1504.05729.- 2015 - 12 p. - Published in : Ukr. J. Phys.: 60 (2015) , pp. 297-308 External link: Preprint

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2015-04-24
07:48
Critical Theory of Two-Dimensional Mott Transition: Integrability and Hilbert Space Mapping / Bottesi, Federico L ; Zemba, Guillermo R
We reconsider the Mott transition in the context of a two-dimensional fermion model with density-density coupling. We exhibit a Hilbert space mapping between the original model and the Double Lattice Chern-Simons theory at the critical point by use of the representation theory of the q-oscillator and Weyl algebras. [...]
arXiv:1504.05772.- 2015 - Published in : Journal of Modern Physics 6 (2015) 634-639 External link: Preprint

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2015-04-24
07:46
Lorenz gauge quantization in conformally flat spacetimes / Cresswell, Jesse C ; Vollick, Dan N
Recently it was shown that Dirac's method of quantizing constrained dynamical systems can be used to impose the Lorenz gauge condition in a four-dimensional cosmological spacetime. In this paper we use Dirac's method to impose the Lorenz gauge condition in a general four-dimensional conformally flat spacetime and find that there is no particle production. [...]
arXiv:1504.05914.- 2015 - 8 p. - Published in : Phys. Rev. D 91 (2015) 084008 External link: Preprint

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