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36 papers · 1 filter
Dispersion and uncertainty in multislit matter wave diffraction
G. Glionna, A. H. Blin, B. Hiller +3
We show that single and multislit experiments involving matter waves may be constructed to assess correlations between the position and momentum of a single free particle. These co…
On Chaotic Dynamics in Rational Polygonal Billiards
Valery B. Kokshenev
We discuss the interplay between the piece-line regular and vertex-angle singular boundary effects, related to integrability and chaotic features in rational polygonal billiards. T…
Spectral evolution of star clusters in the Large Magellanic Cloud: I. Blue concentrated clusters in the age range 40-300 Myr
J. F. C. Santos, J. J. Claria, A. V. Ahumada +3
Integrated spectroscopy of a sample of 17 blue concentrated Large Magellanic Cloud (LMC) clusters is presented and its spectral evolution studied. The spectra span the range ~3600-…
Complex Hyperbolic Structures on Disc Bundles over Surfaces
Sasha Anan'in, Carlos H. Grossi, Nikolay Gusevskii
We study complex hyperbolic disc bundles over closed orientable surfaces that arise from discrete and faithful representations H_n->PU(2,1), where H_n is the fundamental group of t…
Scale separation in granular packings: stress plateaus and fluctuations
C. Goldenberg, A. P. F. Atman, P. Claudin +2
It is demonstrated, by numerical simulations of a 2D assembly of polydisperse disks, that there exists a range (plateau) of coarse graining scales for which the stress tensor field…
Geometrical pinning of magnetic vortices induced by a deficit angle on a surface: anisotropic spins on a conic space background
W. A. Moura-Melo, A. R. Pereira, L. A. S. Mol +1
We study magnetic vortex-like excitations lying on a conic space background. Two types of them are obtained. Their energies appear to be linearly dependent on the conical aperture…