منابع مشابه
Physics in Ultra-strong Magnetic Fields
In magnetic fields stronger than BQ ≡ m 2 ec /h̄e = 4.4 × 10 Gauss, an electron’s Landau excitation energy exceeds its rest energy. I review the physics of this strange regime and some of its implications for the crusts and magnetospheres of neutron stars. In particular, I describe how ultra-strong fields • render the vacuum birefringent and capable of distorting and magnifying images (“magnetic...
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We propose three effective Hamiltonians which approximate atoms in very strong homogeneous magnetic fields B modelled by the Pauli Hamiltonian, with fixed total angular momentum with respect to magnetic field axis. All three Hamiltonians describe N electrons and a fixed nucleus where the Coulomb interaction has been replaced by B-dependent one-dimensional effective (vector valued) potentials bu...
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We present a scenario for efficient magnetization of very young galaxies about 0.5 Gigayears after the Big-Bang by a cosmic ray-driven dynamo. These objects experience a phase of strong star formation during this first 10 years. We transfer the knowledge of the connection between star formation and the production rate of cosmic rays by supernova remnants to such high redshift objects. Since the...
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We compute the dispersion relations for neutrinos propagating in an electroweak plasma, in the presence of very strong magnetic fields. The neutrino self-energy is calculated in the one-loop approximation. We consider only contributions of the first Landau level to the propagator of the W -bosons, and distinguish between motion parallel or perpendicular to the external magnetic field. We find t...
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A Classical Trajectory Monte Carlo (CTMC) simulation has been made of processes of charge exchange and ionization between an hydrogen atom and fully stripped ions embedded in very strong static electric fields (O(10 V/m)), which are thought to exist in cosmic and laser–produced plasmas. Calculations show that the presence of the field affects absolute values of the cross sections, enhancing ion...
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ژورنال
عنوان ژورنال: Space Science Reviews
سال: 2015
ISSN: 0038-6308,1572-9672
DOI: 10.1007/s11214-015-0137-z