3 papers
cond-mat.supr-con2026
Superconducting Proximity Effect in an SSH-Superconductor Junction
I. A. Belkovich, A. A. Radkevich
A model of microscopic interaction between a superconductor and a one-dimensional topological insulator, an SSH chain, is considered. Using the functional integration method, the e…
hep-th2025
Global quenches and correlator dynamics in de Sitter space
Ivan A. Belkovich, Damir Sadekov, Gleb S. Zverev
We study non-equilibrium initial states of quantum fields in curved space-time and develop a framework for describing global quenches as unitary perturbations of the initial densit…
hep-th2024
On (dis)agreement between different methods of calculation of the imaginary part of the effective action in expanding space-times
E. T. Akhmedov, I. A. Belkovich, D. V. Diakonov +1
We consider two approaches to calculate imaginary parts of effective actions in expanding space-times. While the first approach uses Bogolyubov coefficients, the second one uses th…