Operational Resource Theory of Quantum Channels

Understand

Quantum resource theories have been widely studied to systematically characterize the non-classicality of quantum systems.

• Most resource theories focus on quantum states and study their interconversions.
• Although quantum channels are generally used as the tool for state manipulation, such a manipulation capability can be naturally regarded as a generalized quantum resource, leading to an open research direction in the resource theories of quantum channels.
• Various resource-theoretic properties of channels have been investigated, however, without treating channels themselves as operational resources that can also be manipulated and converted.