108 citations · 1.4k across the 61 of their papers we have counts for
4 papers · 1 filter
Mutual information-energy inequality for thermal states of a bipartite quantum system
Aleksey Fedorov, Evgeny Kiktenko
In this work, we consider an upper bound for the quantum mutual information in thermal states of a bipartite quantum system. This bound is related with the interaction energy and l…
Multilevel superconducting circuits as two-qubit systems: Operations, state preparation, and entropic inequalities
E. O. Kiktenko, A. K. Fedorov, O. V. Man'ko +1
We theoretically study operations with a four-level superconducting circuit as a two-qubit system. Using a mapping on a two-qubit system, we show how to implement iSWAP gates and H…
Tomographic discord for a system of two coupled nanoelectric circuits
A. K. Fedorov, E. O. Kiktenko, O. V. Man'ko +1
We consider quantum correlations and quantum discord phenomena for two-qubit states with -type density matrices in the tomographic framework of quantum mechanics. By introducing…
Tomography of a multimode quantum black box
Ilya A. Fedorov, Aleksey K. Fedorov, Yury V. Kurochkin +1
We report a technique for experimental characterization of an -mode quantum optical process, generalizing the single-mode coherent-state quantum-process tomography method [M. Lo…