2,361 research outputs found
Covariant Treatment of Neutrino Spin (Flavour) Conversion in Matter under the Influence of Electromagnetic Fields
Within the recently proposed Lorentz invariant formalism for description of
neutrino spin evolution in presence of an arbitrary electromagnetic fields
effects of matter motion and polarization are considered.Comment: Extended version of contribution to "Particle Physics on Boundary of
Millenniums" (Proceedings of the 9th Lomonosov Conference on Elementary
Particle Physics, World Scientific, Singapure
Information Technology for Increasing Qualitative Information Processing Efficiency
The problem of qualitative information processing in questionnaires is considered and a solution for this problem is offered. The computer technology developed by the authors to automate the offered decision is described
Signature of Fermi arc surface states in Andreev reflection at the WTe Weyl semimetal surface
We experimentally investigate charge transport through the interface between
a niobium superconductor and a three-dimensional WTe Weyl semimetal. In
addition to classical Andreev reflection, we observe sharp non-periodic subgap
resistance resonances. From an analysis of their positions, magnetic field and
temperature dependencies, we can interpret them as an analog of Tomasch
oscillations for transport along the topological surface state across the
region of proximity-induced superconductivity at the Nb-WTe interface.
Observation of distinct geometrical resonances implies a specific transmission
direction for carriers, which is a hallmark of the Fermi arc surface states.Comment: 5 pages, some misprints has been correcte
On the possible observational manifestation of supernova shock impact on the neutron star magnetosphere
Impact of supernova explosion on the neutron star magnetosphere in a massive
binary system is considered. The supernova shock striking the NS magnetosphere
filled with plasma can lead to the formation of a magnetospheric tail with
significant magnetic energy. The magnetic field reconnection in the current
sheet formed can convert the magnetic energy stored in the tail into kinetic
energy of accelerated charged particles. Plasma instabilities excited by beams
of relativistic particles can lead to the formation of a short pulse of
coherent radio emission with parameters similar to those of the observed bright
extragalactic millisecond radio burst (Lorimer et al. 2007).Comment: 8 pages, Astron. Lett. in pres
Black hole solutions with dilatonic hair in higher curvature gravity
A new numerical integration method for examining a black hole structure was
realized. Black hole solutions with dilatonic hair of 4D low energy effective
SuperString Theory action with Gauss-Bonnet quadratic curvature contribution
were studied, using this method, inside and outside the event horizon.
Thermodynamical properties of this solution were also studied.Comment: 10 pages, 6 figures, RevTeX, figures in LaTeX or PostScript are
avaible upon request via e-mail address: [email protected], Submitted
to Phys.Rev.
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