(Mathematics & Computer Science, Brandon University)
Some matrix theory questions arising from quantum coherence
|Date||Friday, March 11, 2016|
The two main concepts that separate quantum information theory from classical information theory are entanglement and superpositions. In this talk we will explore these concepts, with particular focus on superpositions. Both can be used as resources and it is therefore important to measure them. Various measures of quantum entanglement have been investigated for years, but measures of coherence (i.e., ``how superpositioned'' a quantum state is) have only recently been formally studied. We will discuss three measures of quantum coherence, using a matrix theory point of view to answer some open questions about them.