نتایج جستجو برای: moments ratio diagram
تعداد نتایج: 593970 فیلتر نتایج به سال:
We demonstrate gate control of the electronic g tensor in single and double quantum dots formed along a bend in a carbon nanotube. From the dependence of the single-dot excitation spectrum on magnetic field magnitude and direction, we extract spin-orbit coupling, valley coupling, and spin and orbital magnetic moments. Gate control of the g tensor is measured using the splitting of the Kondo pea...
We discuss the double scaling limit of SYK model with global symmetries. develop chord diagram techniques to compute moments Hamiltonian and two point function in presence arbitrary chemical potential. also derive a transfer matrix acting on an auxiliary Hilbert space which can capture contributions. present explicit results for case classical group symmetries namely orthogonal, unitary symplec...
We examine the magnetic phase diagram of iron pnictides using a five-band model. For the intermediate values of the interaction expected to hold in the iron pnictides, we find a metallic low moment state characterized by antiparallel orbital magnetic moments. The anisotropy of the interorbital hopping amplitudes is the key to understanding this low moment state. This state accounts for the smal...
We demonstrate that the system of localized magnetic moments in HoNi2B2C can be described by the four-positional clock model. This model, at a proper choice of the coupling constants, yields several metamagnetic phases in magnetic field at zero temperature in full agreement with the experimental phase diagram. The model incorporates couplings between non-nearest neighbors in the direction perpe...
We have studied the magnetostructural phase diagram of multiferroic TbMn2O5 as a function of temperature and magnetic field by neutron diffraction. Dielectric and magnetic anomalies are found to be associated with steps in the magnetic propagation vector, including a rare example of a commensurate-incommensurate transition on cooling below 24 K, and in the structural parameters. The geometrical...
Description The package implements the statistical theory of L-moments in R including L-moment estimation, probability-weighted moment estimation, parameter estimation for numerous familiar and not-so-familiar distributions, and L-moment estimation for the same distributions from the parameters. L-moments are derived from the expectations of order statistics and are linear with respect to the p...
Experimental data on the F2 structure functions of the proton and deuteron, including recent results from CLAS at Jefferson Lab, have been used to construct their n ≤ 12 moments. A comprehensive analysis of the moments in terms of the operator product expansion has been performed to separate the moments into leading and higher twist contributions. Particular attention was paid to the issue of n...
We develop a non-negative polynomial minimum-norm likelihood ratio (PLR) of two distributions which only moments are known. The PLR converges to the true, unknown, ratio. show consistency, obtain asymptotic distribution for coefficients estimated with sample moments, and present applications. first develops unknown transition density jump-diffusion process. second modifies Hansen-Jagannathan pr...
the goal of multi-frame super resolution (sr) is to fuse multiple low resolution (lr) images to produce one high resolution (hr) image. the major challenge of classic sr approaches is accurate motion estimation between the frames. to handle this challenge, fuzzy motion estimation method has been proposed that replaces value of each pixel using the weighted averaging all its neighboring pixels i...
The successes and shortcomings of the Standard Model are reviewed, with emphasis on the reasons motivating the need to extend it. The basic elements of grand unification and supersymmetry are described, exploring their phenomenological implications for gauge coupling unification, proton decay, fermion masses, neutrino physics, collider signatures, dark matter, rare decays and anomalous magnetic...
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