625 research outputs found
Proximity-reduced range of internal phase differences in double Josephson junctions with closely spaced interfaces
A substantial influence of the proximity and pair breaking effects on the
range of internal phase differences is shown to take place in symmetric double
Josephson junctions with closely spaced interfaces and to affect the evolution
of the supercurrent j with the changing central lead's length L. If the phase
difference phi between the external leads is controlled and L exceeds a few
coherence lengths, the regime of interchanging modes is established. The range
of the phase differences across the two individual interfaces is reduced with
decreasing L, and the states of the higher energy mode are gradually
eliminated. With a further decrease of L the regime of interchanging modes is
destroyed along with the asymmetric mode. The conventional single junction
current-phase relation j(phi) is eventually established and the condensate
states' doubling is fully removed at very small L.Comment: 8 pages, 4 figures, published versio
Hydrodynamics and evaporation of a sessile drop of capillary size
Fluid dynamics video of an evaporating sessile drop of capillary size is
presented. The corresponding simulation represents the description taking into
account jointly time dependent hydrodynamics, vapor diffusion and thermal
conduction in an evaporating sessile drop. The fluid convection in the drop is
driven by Marangoni forces associated with the temperature dependence of the
surface tension. For the first time the evolution of the vortex structure in
the drop during an evaporation process is obtained.Comment: APS/DFD Gallery of fluid motion 201
RNGSSELIB: Program library for random number generation. More generators, parallel streams of random numbers and Fortran compatibility
In this update, we present the new version of the random number generator
(RNG) library RNGSSELIB, which, in particular, contains fast SSE realizations
of a number of modern and most reliable generators \cite{RNGSSELIB1}. The new
features are: i) Fortran compatibility and examples of using the library in
Fortran; ii) new modern and reliable generators; iii) the abilities to jump
ahead inside RNG sequence and to initialize up to independent random
number streams with block splitting method.Comment: 6 pages, 1 tabl
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