Discrete and Continuous Signals: Analysis, Information and Applications

On generating quantum channels

14 Dec 2023, 15:00

25m

St. Petersburg University, MCS faculty

Quantum Information Session

Speakers

Renat Gumerov (Kazan Federal university) Ruslan Khazhin (Kazan federal university)

Description

For composite quantum systems, we consider quantum channels that uniquely determine the channels of subsystems. Such channels of composite systems are called generating quantum channels.
The talk is devoted to properties of those quantum channels. We give a criterion for a quantum channel to be generating. Algebraic and topological properties of sets of generating quantum channels are discussed. For composite systems consisting of two qubits, we construct generating phase-damping channels which generate phase-damping and depolarizing quantum channels of subsystems.