13,616 research outputs found
E-B Mixing in T-violating Superconductors
We analyze time reversal violating processes of the p-wave superconductor.
The Landau-Ginzuburg effective action has an induced T-violating term of
electromagnetic potentials which resembles the Chern-Simons term and causes a
mixing between the electric field and the magnetic field. Several T-violating
electromagnetic phenomena caused by this term, such as unusual Meissner effect,
Hall effect without magnetic field, and Farady rotation without magnetic field
are investigated.Comment: 10 pages, no figures, LaTex. The final version can be obtained from
"http://wwwsoc.nacsis.ac.jp/jps/jpsj/index.html
Intra-Landau level polarization effect for a striped Hall gas
We calculate the polarization function including only intra-Landau level
correlation effects of striped Hall gas. Using the polarization function, the
dielectric function, the dispersion of the plasmon and the correlation energy
are computed in a random phase approximation (RPA) and generalized random phase
approximation (GRPA). The plasmon becomes anisotropic and gapless owing to the
anisotropy of the striped Hall gas and two dimensionality of the quantum Hall
system. The plasmon approximately agrees with the phonon derived before by the
single mode approximation. The (G)RPA correlation energy is compared with other
numerical calculations.Comment: 15 pages,15 figures, revtex4, published versio
Axial Anomaly Effect in Chiral p-wave Superconductor
We analyze the chiral p-wave superconductor in the low temperature region.
The superconductor has a epsilon_{x} p_{x} + i epsilon_{y} p_{y}-wave gap in
two dimensional space (2D). Near the second superconducting transition point,
the system could be described by a quasi-1D chiral p-wave model in 2D. The
axial anomaly occurs in such a model and causes an accumulation of the
quasiparticle in an inhomogeneous magnetic field. The effect is related to the
winding number of the gap.Comment: 12 pages, 1 figure, RevTex. The final version is accepted for
publication in J. Phys. Soc. Jp
Intracycle and Intercycle Interferences in Above-Threshold Ionization: the Time Grating
Within a semiclassical description of above-threshold ionization (ATI) we
identify the interplay between intracycle and intercycle interferences. The
former is imprinted as a modulation envelope on the discrete multiphoton peaks
formed by the latter. This allows to unravel the complex interference pattern
observed for the full solution of the time-dependent Schr\"odinger equation
(TDSE) in terms of diffraction at a grating in the time domain. These
modulations can be clearly seen in the dependence of the ATI spectra on the
laser wavelength. Shifts in energy modulation result from the effect of the
long Coulomb tail of the atomic potential.Comment: 10 pages, 5 figures in preprint forma
Electromagnetic Form Factors of Nucleons with QCD Constraints Sytematic Study of the Space and Time-like Regions
Elastic electromagnetic form factors of nucleons are investigated both for
the time-like and the space-like momentums under the condition that the QCD
constraints are satisfied asymptotically. The unsubtracted dispersion relation
with the superconvergence conditions are used as a realization of the QCD
conditions. The experimental data are analyzed by using the dispersion formula
and it is shown that the calculated form factors reproduce the experimental
data reasonably well.Comment: 14 page
Operation of Faddeev-Kernel in Configuration Space
We present a practical method to solve Faddeev three-body equations at
energies above three-body breakup threshold as integral equations in coordinate
space. This is an extension of previously used method for bound states and
scattering states below three-body breakup threshold energy. We show that
breakup components in three-body reactions produce long-range effects on
Faddeev integral kernels in coordinate space, and propose numerical procedures
to treat these effects. Using these techniques, we solve Faddeev equations for
neutron-deuteron scattering to compare with benchmark solutions.Comment: 20 pages, 8 figures, to be published in Few-Body System
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