© 2020 by the authors. Licensee MDPI, Basel, Switzerland. We consider the magnetic monopole in the axionic dark matter environment (axionic dyon) in the framework of the Reissner-Nordstrom-de Sitter model. Our aim is to ...

We consider the nonlinearly extended Einstein–Maxwell-axion theory, which is based on the account for two symmetries: first, the discrete symmetry associated with the properties of the axion field, and second, the Jackson’s ...

© 2019 by the authors. We consider the CANNEX (Casimir And Non-Newtonian force EXperiment) test of the quantum vacuum intended for measuring the gradient of the Casimir pressure between two flat parallel plates at large ...