3 papers
quant-ph2026
Two-photon coupling via Josephson element II: Interaction dressing, cross-Kerr coupling, and limits of low-energy bosonic model
Eugene V. Stolyarov, V. L. Andriichuk, Andrii M. Sokolov
We study the interactions mediated by a symmetric superconducting quantum interference device (SQUID), their renormalizations, and the applicability of the anharmonic oscillator (b…
quant-ph2025
Detector of microwave photon pairs based on a Josephson photomultiplier
E. V. Stolyarov, R. A. Baskov
We propose a viable design of a microwave two-photon threshold detector. In essence, the considered scheme is an extension of the existing single-photon detector - a Josephson phot…
quant-ph2024
Tight inequalities for nonclassicality of measurement statistics
V. S. Kovtoniuk, E. V. Stolyarov, O. V. Kliushnichenko +1
In quantum optics, measurement statistics -- for example, photocounting statistics -- are considered nonclassical if they cannot be reproduced with statistical mixtures of classica…