scholarly journals Simulations of Cold Electroweak Baryogenesis: hypercharge U(1) and the creation of helical magnetic fields

2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Zong-Gang Mou ◽  
Paul M. Saffin ◽  
Anders Tranberg
Keyword(s):  
Magnetic Fields ◽  
The Creation

scholarly journals The creation of 360° domain walls in ferromagnetic nanorings by circular applied magnetic fields

2014 ◽  
Vol 115 (17) ◽  
pp. 17D135 ◽  
Author(s):  
Jessica E. Bickel ◽  
Spencer A. Smith ◽  
Katherine E. Aidala
Keyword(s):  
Magnetic Fields ◽  
Domain Walls ◽  
The Creation ◽  
Ferromagnetic Nanorings

Vehicle Detection and Monitoring Setup Based on Anisotropic Magnetoresistance Sensors

2014 ◽  
Vol 605 ◽  
pp. 625-628
Author(s):  
N. Hadjigeorgiou ◽  
D. Kossivakis ◽  
P. Skafidas
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Vehicle Detection ◽  
Magnetic Sensors ◽  
Anisotropic Magnetoresistance ◽  
The Creation ◽  
The Magnetic Field

The evolution in microelectronics and microarchitecture lead to the creation of cheap and reliable embedded magnetic sensors. Anisotropic Magnetoresistors (AMR), being able to measure one axis magnetic fields, have been employed in many applications so far. In this paper AMR sensor (HMC2003) manufactured by Honeywell Inc. was tested for its ability to detect the magnetic field of a vehicle. Two different sensor topologies were examined regarding their performance in vehicle detection and monitoring.

Linking radio flares with spots on the active binary UX Arietis

2019 ◽  
Vol 15 (S354) ◽  
pp. 418-420
Author(s):  
Christian A. Hummel ◽  
Anthony Beasley
Keyword(s):  
Magnetic Fields ◽  
Primary Component ◽  
Stellar Activity ◽  
Giant Star ◽  
Large Spot ◽  
Photometric Observations ◽  
The Creation

AbstractSigns of stellar activity such as large surface spots and radio flares are often related to binarity. UX Arietis is one of the most active members of the RS CVn class of binaries in which spin-up of a sub-giant/giant star by a close companion leads to the creation of magnetic fields. UX Arietis exhibits these signs of activity, originating mostly on the K0 sub-giant primary component. We measured the orbit with the CHARA interferometer and made images of a single large spot rotating in and out of view over a month in 2012. The rotation of the stars is synchronous with the orbit, and long-term photometric observations show that the spot or spots do not move much during intervals of a year. Our aim is to relate the positions of the stars and the spots on the primary to astrometry of the radio components observed during outbursts.

On the Possibility of the Creation of Radically New Type Detectors of Particles and Radiation Based on High-Tc Superconductors

1997 ◽  
Vol 11 (25) ◽  
pp. 1123-1131 ◽  
Author(s):  
S. G. Gevorgyan ◽  
A. A. Movsisyan ◽  
G. D. Movsesyan ◽  
V. A. Shindyan ◽  
H. G. Shirinyan
Keyword(s):  
Thin Film ◽  
Magnetic Fields ◽  
Electrophysical Properties ◽  
High Tc Superconductors ◽  
High Tc ◽  
Diode Oscillator ◽  
New Type ◽  
Htsc Film ◽  
The Creation ◽  
Tunnel Diode Oscillator

Some aspects of high-T c superconductors (HTSC) electrophysical properties, which could be successfully applied to the detection of particles and radiation are discussed. The possibilities and the perspectives of the creation of completely new type detectors of elementary particles and ionizing radiation, based on HTSC materials, are considered. At this, the use of the unusual open-flat measuring (pick-up) coils made of, in particular, the HTSC materials, as a detecting element in known tunnel diode oscillator technique it seems of considerable promise and may find also a number of other applications in different areas of science and technology. The results of the HTSC thin-film structures real use for the detection of the visible and infrared spectrum radiations as well as constant magnetic fields and also direct currents passing through the HTSC film structures are presented. Three designs of these detectors are proposed suitable for various applications. The achieved up-to-date sensitivity is about 10-11 Wt/cm2/Hz-1/2 for the 0.63 μm and 0.8 μm wavelength radiations, about 0.1 mOe/cm2/Hz-1/2 for the constant magnetic fields and about 0.1 μA/cm2/Hz-1/2 for the direct currents passing through the HTSC thin-film structures. Capabilities of new detectors are evaluated and possible directions of further essential improvement of their parameters are also suggested.

scholarly journals Inflationary Magnetogenesis with Helical Coupling

2019 ◽  
Vol 64 (11) ◽  
pp. 1009 ◽  
Author(s):  
Yu. V. Shtanov ◽  
M. V. Pavliuk
Keyword(s):  
Charged Particle ◽  
Magnetic Fields ◽  
Spectral Band ◽  
Model Parameters ◽  
Narrow Spectral Band ◽  
The Creation ◽  
Schwinger Effect ◽  
Additional Constraints

We describe a simple scenario of inflationary magnetogenesis based on a helical coupling to electromagnetism. It allows the generation of helical magnetic fields with strength of order up to 10−7 Gs, when extrapolated to the current epoch, in a narrow spectral band centered at any physical wavenumber after the adjustment of model parameters. The additional constraints on magnetic fields arise from the considerations of baryogenesis and, possibly, from the Schwinger effect of the creation of charged particle-antiparticle pairs.

scholarly journals Theoretical Studies on the Creation of Artificial Magnetic Monopoles

2018 ◽  
Author(s):  
Shinichi Ishiguri
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Lorentz Transformation ◽  
Magnetic Monopole ◽  
Stationary Wave ◽  
Theoretical Studies ◽  
Electrostatic Fields ◽  
Superconducting Loop ◽  
The Creation ◽  
The Magnetic Field

In this study, we discuss the theoretical studies on the creation of artificial magnetic monopole, and new electromagnetic equations. Employing Lorentz transformation, radial electrostatic fields, and a stationary wave derived from a superconducting loop, we demonstrate the existence of a magnetic monopole whereby the divergence of the magnetic field is not zero. We develop a device wherein a condenser provides electrostatic fields along the radial direction to the superconducting loop and discuss the nodes of the resulting stationary wave along the superconducting loop. We employ the Lorentz transformation with respect to the vector and electrostatic potentials. Then, because the nodes have no three-dimensional vector potential and have zero magnetic field rotation, the conserved energy is converted into new form that is associated with the magnetic field potential to yield the Lorentz transformation. As a result, we derived the relationship between the electric and the magnetic fields. This dependent relationship involves the exchange of the distribution characteristics of the static electric and static magnetic fields, and new electromagnetic equations of both electric and magnetic fields are obtained. We also analyzed the magnetic field from the magnetic monopole whose result assists the theory.

Structure and Evolution of Coronal Magnetic Fields

1994 ◽  
Vol 144 ◽  
pp. 11-20
Author(s):  
G. H. J. van den Oord
Keyword(s):  
Magnetic Fields ◽  
Boundary Value Problem ◽  
Boundary Value ◽  
Energy Partitioning ◽  
Force Balance ◽  
Mhd Equations ◽  
Small Scales ◽  
Coronal Magnetic Fields ◽  
The Creation

AbstractA review is presented on the structure and evolution of coronal magnetic fields. The force balance and the energy partitioning of the field is discussed together with a number of MHD invariants and their implications. Various solutions of the MHD equations are reviewed along with their applicability to the actual boundary value problem posed by the photospheric driver. The importance of topological studies in understanding the creation of small scales is emphasized.

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