Vl. V. Kocharovsky

TL;DR: In this article, the dynamics of a neutron-proton relativistic wind, paying particular attention to fireballs of cosmological gamma-ray bursts (GRBs), were analyzed, and conditions for the decoupling of the neutron flow as well as the resulting pion-induced cascade were discussed.

TL;DR: In this article, the authors formulate the general requirements, set by classical electrodynamics, on the sources of extremely high-energy cosmic rays (EHECRs), and show that the parameters of EHECR accelerators are strongly limited not only by the particle confinement in large-scale magnetic fields or by the difference in electric potentials (generalized Hillas criterion) but also by the synchrotron radiation, the electro-bremsstrahlung, or the curvature radiation of accelerated particles.

TL;DR: In this article, the physical parameters in the sources of cosmological Gamma-Ray Bursts (GRBs) are derived from few plausible assumptions consistent with observations, and the general requirements posed by the assumptions on the emission mechanism in GRBs are formulated.

TL;DR: In this article, the authors proposed a new acceleration mechanism for relativistic bulk flows, which takes advantage of a conversion of particles from the charged state (protons, electrons or positrons) into a neutral state (neutrons or photons) and back.

TL;DR: In this paper, a scheme for infrared generation without population inversion between subbands in quantum-well and quantum-dot lasers is presented based on the resonant nonlinear mixing of the optical laser fields on the two interband transitions that are generated in the same active region and that serve as the coherent drive for the infrared field.