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Bound on trace distance based on superfidelity
Zbigniew Puchała, Jarosław Adam Miszczak
We provide a bound for the trace distance between two quantum states. The lower bound is based on the superfidelity, which provides the upper bound on quantum fidelity. One of the…
Noise Effects in Quantum Magic Squares Game
P. Gawron, J. A. Miszczak, J. Sladkowski
In the article we analyse how noisiness of quantum channels can influence the magic squares quantum pseudo-telepathy game. We show that the probability of success can be used to de…
Quantum state discrimination: a geometric approach
D. Markham, J. A. Miszczak, Z. Puchala +1
We analyse the problem of finding sets of quantum states that can be deterministically discriminated. From a geometric point of view this problem is equivalent to that of embedding…
Entanglement and classical correlations in the quantum frame
E. G. Beltrametti, S. Bugajski
The frame of classical probability theory can be generalized by enlarging the usual family of random variables in order to encompass nondeterministic ones: this leads to a frame in…