4 papers
Nonclassical light at exceptional points of a quantum PT-symmetric two-mode system
Jan Perina, Antonin Luks, Joanna K. Kalaga +2
A two-mode optical parity-time (PT) symmetric system, with gain and damping, described by a quantum quadratic Hamiltonian with additional small Kerr-like nonlinear terms, is analyz…
Chaotic evolution of the energy of the electron orbital and the hopping integral in diatomic molecule cations subjected to harmonic excitation
I. A. Domagalska, M. W. Jarosik, A. P. Durajski +2
We analysed the dynamics of the positively charged ions of diatomic molecules ( and ), in which the bond is realised by the single electron. We assum…
Anomalously high value of Coulomb pseudopotential for the superconductor
Małgorzata Kostrzewa, Radosław Szczęśniak, Joanna K. Kalaga +1
The and compounds are the two candidates for the low-temperature phase of compressed sulfur-hydrogen system. We have shown that the value of Coulo…
Characteristics of superconducting state in vanadium: the Eliashberg equations and semi-analytical formulas
E. A. Drzazga, I. A. Domagalska, M. W. Jarosik +2
The superconducting state in vanadium characterizes with the critical temperature () equal to ~K. The Coulomb pseudopotential, calculated with the help of the Eliashber…