35 citations · 62 across the 4 of their papers we have counts for
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Small sets of complementary observables
M. Grassl, D. McNulty, L. Mišta +1
Two observables are called complementary if preparing a physical object in an eigenstate of one of them yields a completely random result in a measurement of the other. We investig…
No-activation theorem for Gaussian nonclassical correlations by Gaussian operations
Ladislav Mišta, Daniel McNulty, Gerardo Adesso
We study general quantum correlations of continuous variable Gaussian states and their interplay with entanglement. Specifically, we investigate the existence of a quantum protocol…
Nonexistence of entangled continuous-variable Werner states with positive partial transpose
Daniel McNulty, Richard Tatham, Ladislav Mišta
We address an open question about the existence of entangled continuous-variable (CV) Werner states with positive partial transpose (PPT). We prove that no such state exists by sho…
On the Impossibility to Extend Triples of Mutually Unbiased Product Bases in Dimension Six
Daniel McNulty, Stefan Weigert
An analytic proof is given which shows that it is impossible to extend any triple of mutually unbiased (MU) product bases in dimension six by a single MU vector. Furthermore, the 1…