Universal properties of the spin Hall effect in ballistic 2D electron systems are addressed. The net spin polarization across the edge of the conductor is second order, approximately lambda2, in spin-orbit coupling constant independent of the form of the boundary potential, with the contributions of normal and evanescent modes each being approximately radical lambda but of opposite signs. This ...

A Langevin equation for the quantum Brownian motion of a spin of arbitrary size in a uniform external dc magnetic field is derived from the phase space master equation in the weak coupling and narrowing limits, for the quasiprobability distribution (Wigner) function of spin orientations in the configuration space of polar and azimuthal angles following methods long familiar in quantum optics. T...

Theorientations of the spin vectors of 128disk galaxies (66 S0 galaxies, 62 S and Irr galaxies) in the Coma cluster have been statistically studied. With respect to the expected isotropic distribution, the distribution of the spin vectors in the Coma cluster is shown to be anisotropic, in the sense that S0 galaxies tend to have their spin vectors parallel to the cluster plane, while the spin ve...

The magnetic dipole strength and energy-weighted strength distribution is calculated in 8 Be, as well as the separate orbit and spin parts. All ∆N =2 excitations over and above (and including) the configuration 0s 4 0p 4 are included. The interaction has a central, two-body spin-orbit and a tensor part. The energy-independent and energy-weighted orbital strength distribution is remarkably insen...

In a typical solitonic distribution, the soliton density is distributed over the entire moleculeand the present work shows how its density can be decomposed into solitonic and antisolitoniccomponents. It is found that there exists a unique electron as soliton over the anionicnanoconductor, while there are many other solitons and antisolitons. The solitonic states are furtherdecomposed to the ca...

Theory. We propose a novel biophysical model of the diffusion signal. Inspired by the ADC approach of [1], we consider measurements of the signal arising from a large number of individual homogeneous spin packets within a voxel. However, in contrast to the 1D model of [1], we model the 3-D Gaussian diffusion of each homogeneous spin packet with a full diffusion tensor , capturing the 3-D struct...

Parton distribution functions, which represent the flavor and spin structure of the nucleon, provide invaluable information in illuminating quantum chromodynamics in the confinement region. Among various processes that measure such parton distribution functions, semi-inclusive deep inelastic scattering is regarded as one of the golden channels to access transverse momentum dependent parton dist...

A theory is introduced for spin relaxation and spin diffusion of hopping carriers in a disordered system. For disorder described by a distribution of waiting times between hops (e.g., from multiple traps, site-energy disorder, and/or positional disorder) the dominant spin relaxation mechanisms in organic semiconductors (hyperfine, hopping-induced spin-orbit, and intrasite spin relaxation) each ...

An ultrafast time-resolved magneto-optical pump probe is applied to study spin-relaxation processes in a ferromagnetic CoPt3 alloy film. Following spin-selective photoexcitation with circularly polarized femtosecond pulses, transient Kerr ellipticity tracks the evolution of the nonequilibrium spin system. We isolate two distinct processes: a subpicosecond component due to the relaxation of cohe...

blackberry diversity is high in iran due to its wild and natural populations especially in south of caspian sea. however it has not been investigated before. the goal of this work was to evaluate some wild populations of black berry in mazandaran province of iran. at first, region and then location of blackberries plants identified and the traits of leaf, stem, spin, flower, fruit quantity and ...