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the transport properties of nonlinear non - equilibrium dynamical systems are far from well - understood@xcite .
consider in particular so - called ratchet systems which are asymmetric periodic potentials where an ensemble of particles experience directed transport@xcite .
the origins of the interest in this lie in... | in 84 , 258 ( 2000 ) , mateos conjectured that current reversal in a classical deterministic ratchet is associated with bifurcations from chaotic to periodic regimes .
this is based on the comparison of the current and the bifurcation diagram as a function of a given parameter for a periodic asymmetric potential .
... | arxiv |
one surprising result that has come out of the more than 200 extrasolar planet discoveries to date is the wide range of eccentricities observed . unlike our own solar system
, many of the extrasolar planets which are not tidally locked to their host stars have moderate eccentricities ( @xmath1 ) , and 15 planets have... | long time coverage and high radial velocity precision have allowed for the discovery of additional objects in known planetary systems .
many of the extrasolar planets detected have highly eccentric orbits , which raises the question of how likely those systems are to host additional planets .
we investigate six sys... | arxiv |
the lep experiments at the resonance of @xmath1-boson have tested the standard model ( sm ) at quantum level , measuring the @xmath1-decay into fermion pairs with an accuracy of one part in ten thousands .
the good agreement of the lep data with the sm predictions have severely constrained the behavior of new physics... | various new physics models predict a light cp - odd higgs boson ( labeled as @xmath0 ) and open up new decay modes for @xmath1-boson , such as @xmath2 , @xmath3 and @xmath4 , which could be explored at the gigaz option of the ilc . in this work
we investigate these rare decays in several new physics models , namely t... | arxiv |
supersymmetry ( susy ) is one of the most attractive extensions of the standard model .
this symmetry solves the naturalness problem and predicts gauge coupling unification at the gut scale @xmath1 .
it also predicts the existence of superpartner of the standard model ( sm ) particles . from the naturalness argumen... | no - scale structure of the khler potential is obtained in many types of supersymmetric models . in this paper ,
phenomenological aspects of these models are investigated with special attention to the current higgs mass bound at lep and @xmath0 result at the cleo .
when the boundary condition is given at the gut sc... | arxiv |
it has been known for a long time that owing to planar property and mutual focussing , colliding plane waves ( cpw ) result in spacelike singularities [ 1 ] .
these singularities are somewhat weakened when the waves are endowed with a relative cross polarization prior to the collision . a solution given by chandrasek... | the quasiregular singularities ( horizons ) that form in the collision of cross polarized electromagnetic waves are , as in the linear polarized case , unstable .
the validity of the helliwell - konkowski stability conjecture is tested for a number of exact backreaction cases . in the test electromagnetic case
the ... | arxiv |
x - ray studies of fairly normal " galaxies , with high - energy emission not obviously dominated by a luminous active galactic nucleus ( agn ) , have recently been extended to cosmologically interesting distances in the deep field ( cdf ) surveys , which have now reached 1 ms of exposure ( cdf - n : hornschemeier e... | we present a statistical x - ray study of spiral galaxies in the hubble deep field - north and its flanking fields using the chandra deep field north 1 ms dataset .
we find that @xmath0 galaxies with @xmath1 have ratios of x - ray to @xmath2-band luminosity similar to those in the local universe , although the data... | arxiv |
"quantum systems can be correlated in ways that supersede classical descriptions . \n however , ther(...TRUNCATED) | "the question of which two - qubit states are steerable ( i.e. permit a demonstration of epr - steer(...TRUNCATED) | arxiv |
"the visionary who first thought of using the spin polarization of a single electron to encode a bin(...TRUNCATED) | "this article reviews the use of single electron spins to compute . in classical computing schemes ,(...TRUNCATED) | arxiv |
"cataclysmic variables ( cvs ) are short - period binaries containing a white dwarf ( wd ) primary ((...TRUNCATED) | "we investigate if consequential angular momentum losses ( caml ) or an intrinsic deformation of the(...TRUNCATED) | arxiv |
"stephan s quintet ( hereafter sq ) is a strongly interacting compact group which has produced a hig(...TRUNCATED) | "we present results from the mid - infrared spectral mapping of stephan s quintet using the _ spitze(...TRUNCATED) | arxiv |
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