Quantum resource theories

Quantum information theory can be viewed as a theory of inter-conversions among different resources. These resources are diversely classified as quantum or classical, static or dynamic, noisy or noiseless, and therefore enable plethora of quantum information processing tasks. In this talk I will discuss the characterization, manipulation and quantification of quantum resources. I will focus mostly on the resource theories that follow from the presence of super-selection rules or the absence of shared reference frames. In particular, I will compare and discuss measures of quantum resources, such as the relative entropy of a resource, and show that these measures get different operational interpretations in different resource theories. Such comparisons provide a much broader perspective on all of these resource theories and allow us to use the insights gained from one theory to solve the problems that arise in the context of another resource theory.