Magnetic-field inversion symmetry in quantum pumps with discrete symmetries under the Floquet formalism

Recent observations, such as the magnetic field strength decrease, a magnetic poles shifts and the South Atlantic anomaly increase, may indicate the beginning of the Earth’s magnetic field inversion. According to the geomagnetic dynamo model, the dipole component of the magnetic field is zeroed at the inversion time, and the quadrupole one becomes dominant. To assess the occurrence of radiation hazards on the Earth’s surface and in near-Earth space at the time of magnetic field inversion, a numerical model was developed that made it possible to compare the GCR and SCR fluxes (at minima and maxima of solar activity) penetrating the Earth (taking into account the atmosphere) and the ISS in periods of the dipole and quadrupole fields dominance. It was found that during the period of inversion the flow of GCR (high-energy particles) can increase no more than three times over the entire surface of the Earth and the radiation dose will not exceed permissible one for man. Also, a change of the magnetic field configuration will redistribute areas of increased radiation on the Earth’s surface (today these are the poles of the Earth), which can adversely affect people’s health in these areas.

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Magnetic Field Inversion for Magnetopneumography

Sensor Letters ◽

10.1166/sl.2009.1077 ◽

2009 ◽

Vol 7 (3) ◽

pp. 423-428 ◽

Cited By ~ 1

Author(s):

J. Tomek ◽

A. Platil

Keyword(s):

Magnetic Field ◽

Field Inversion

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Magnetic-field inversion in vortices in multilayers

Physical Review B ◽

10.1103/physrevb.56.14143 ◽

1997 ◽

Vol 56 (21) ◽

pp. 14143-14148

Author(s):

Stavros Theodorakis ◽

Epameinondas Leontidis

Keyword(s):

Magnetic Field ◽

Field Inversion

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Automated techniques for the analysis of magnetic field inversion in filaments with the Solar Feature Catalogue

Advances in Space Research ◽

10.1016/j.asr.2008.06.014 ◽

2009 ◽

Vol 43 (2) ◽

pp. 282-291 ◽

Cited By ~ 1

Author(s):

S.S. Ipson ◽

V.V. Zharkova ◽

S. Zharkov ◽

A.K. Benkhalil ◽

J. Aboudarham ◽

...

Keyword(s):

Magnetic Field ◽

Solar Feature ◽

Field Inversion

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Neutron–antineutron oscillation and discrete symmetries

International Journal of Modern Physics A ◽

10.1142/s0217751x18440165 ◽

2018 ◽

Vol 33 (31) ◽

pp. 1844016 ◽

Cited By ~ 5

Author(s):

Zurab Berezhiani ◽

Arkady Vainshtein

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Text Classification ◽

Discrete Symmetries ◽

Rotational Invariance ◽

Baryon Charge ◽

Free Particles ◽

Definition Of ◽

Charge Formula

We analyze status of [Formula: see text], [Formula: see text] and [Formula: see text] discrete symmetries in application to neutron–antineutron transitions breaking conservation of baryon charge [Formula: see text] by two units. At the level of free particles, all these symmetries are preserved. This includes [Formula: see text] reflection in spite of the opposite internal parities usually ascribed to neutron and antineutron. Explanation, which goes back to the 1937 papers by Majorana and Racah, is based on a definition of parity satisfying [Formula: see text], instead of [Formula: see text], and ascribing [Formula: see text] to both, neutron and antineutron. We apply this to [Formula: see text], [Formula: see text] and [Formula: see text] classification of six-quark operators with [Formula: see text]. It allows to specify operators contributing to neutron–antineutron oscillations. Remaining operators contribute to other [Formula: see text] processes and, in particular, to nuclei instability. We also show that presence of external magnetic field does not induce any new operator mixing the neutron and antineutron provided that rotational invariance is not broken.

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