Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Budko, Neil V."'
Autor:
Budko, Neil V., Vermolen, Fred J.
Simultaneous deterministic and weakly stochastic dynamics of multiple populations described by a large system of ODE's is considered in the phase space of population sizes and ODE's parameters. We show that many practically interesting problems can b
Externí odkaz:
http://arxiv.org/abs/1503.00922
Autor:
de Reus, Michiel, Budko, Neil V.
We investigate one of the consequences of the three competing models describing the mechanical interaction of light with a dielectric medium. According to both the Abraham and Minkowski models the time-averaged force density is zero inside a homogene
Externí odkaz:
http://arxiv.org/abs/1305.0174
Autor:
Zouros, Grigorios P., Budko, Neil V.
This is a companion report for the paper "Transverse electric scattering on inhomogeneous objects: Spectrum of integral operator and preconditioning" by the present authors. In this report we formulate the two-dimensional transverse electric scatteri
Externí odkaz:
http://arxiv.org/abs/1109.4598
Autor:
Zouros, Grigorios P., Budko, Neil V.
Publikováno v:
SIAM Journal on Scientific Computing, Vol. 34, No. 3, B226 - B246, 2012
The domain integral equation method with its FFT-based matrix-vector products is a viable alternative to local methods in free-space scattering problems. However, it often suffers from the extremely slow convergence of iterative methods, especially i
Externí odkaz:
http://arxiv.org/abs/1104.4263
Autor:
Budko, Neil V.
Publikováno v:
Advances in Imaging and Electron Physics, Vol 165, Peter W. Hawkes, editor, San Diego: Academic Press, 2011, pp. 47-72
In this Chapter the time-domain analysis of the velocity of the electromagnetic field pulses generated by a spatially compact source in free space is presented. Recent simulations and measurements of anomalous superluminal, subluminal, and negative v
Externí odkaz:
http://arxiv.org/abs/1006.5576
Publikováno v:
Phys. Rev. B 81, 054206, 2010
A generalization of the S-parameter retrieval method for finite three-dimensional inhomogeneous objects under arbitrary illumination and observation conditions is presented. The effective permittivity of such objects may be rigorously defined as a so
Externí odkaz:
http://arxiv.org/abs/0910.4378
Autor:
Budko, Neil V.
Publikováno v:
Phys. Rev. A 80, 053817 (2009)
Analytical solutions are presented for the electromagnetic radiation by an arbitrary pulsed source into a homogeneous time-varying background medium. In the constant-impedance case an explicit radiation formula is obtained for the synchronous permitt
Externí odkaz:
http://arxiv.org/abs/0906.0495
Autor:
Budko, Neil V.
The first principles analysis of the radiation by an arbitrary source in a flat Friedmann-Robertson-Walker space-time is presented. The obtained analytical solution explicitly shows that the cosmological redshift is not of kinematic origin and that t
Externí odkaz:
http://arxiv.org/abs/0904.3280
Autor:
Budko, Neil V.
Publikováno v:
Phys. Rev. Lett. 102, 020401 (2009)
Since the 1983 definition of the speed of light in vacuum as a fundamental constant with the exact value of 299792458 m/s the question remains as to what apart from the wavefront travels at that speed. It is commonly assumed that the entire wave-pack
Externí odkaz:
http://arxiv.org/abs/0806.4938
Research on photonics and metamaterials constantly challenges our intuitive understanding of the behaviour of light. In recent years we have seen negative refraction, focusing of light by a flat slab, a ``perfect'' prism, and an ``invisibility cloak'
Externí odkaz:
http://arxiv.org/abs/0805.0769