2 papers
quant-ph2018
Coherence measure: Logarithmic coherence number
Zhengjun Xi, Shanshan Yuwen
We introduce a measure of coherence, which is extended from the coherence rank via the standard convex roof construction, we call it the logarithmic coherence number. This approach…
quant-ph2018
Epsilon-smooth measure of coherence
Zhengjun Xi, Shanshan Yuwen
In this paper, by minimizing the coherence quantifiers over all states in an ball around a given state, we define a generalized smooth quantifier, called the -smooth measure…