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17 papers · 1 filter
There are infinitely many limit points of the fractional parts of powers
ArtŪras Dubickas
Suppose that $\al>1$ is an algebraic number and is a real number. We prove that the sequence of fractional parts $\{ξ\al^n\},$ has infinitely many limit point…
A multisite photometric campaign on the Pre-Main-Sequence delta Scuti pulsator IP Per
V. Ripepi, S. Bernabei, M. Marconi +18
We present the results of a photometric multisite campaign on the Scuti Pre-Main-Sequence star IP Per. Nine telescopes have been involved in the observations, with a total of a…
1/f Noise in Fractal Quaternionic Structures
T. Meskauskas, B. Kaulakys
We consider the logistic map over quaternions and different 2D projections of Mandelbrot set in 4D quaternionic space. The approximations (for finite n…
The design and performance of the Gaia photometric system
C. Jordi, E. Hoeg, A. G. A. Brown +32
The European Gaia astrometry mission is due for launch in 2011. Gaia will rely on the proven principles of ESA's Hipparcos mission to create an all-sky survey of about one billion…
Light induced effective magnetic fields for ultra-cold atoms in planar geometries
G. Juzeliunas, J. Ruseckas, P. Ohberg +1
We propose a scheme to create an effective magnetic field for ultra-cold atoms in a planar geometry. The set-up allows the experimental study of classical and quantum Hall effects…
Effective magnetic fields induced by EIT in ultra-cold atomic gases
G. Juzeliunas, J. Ruseckas, P. Ohberg
We study the influence of two resonant laser beams (to be referred to as the control and probe beams) on the centre of mass motion of ultra-cold atoms characterised by three energy…