95 citations · 99 across the 3 of their papers we have counts for
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Clean Positive Operator Valued Measures
F. Buscemi, G. M. D'Ariano, M. Keyl +2
In quantum mechanics the statistics of the outcomes of a measuring apparatus is described by a positive operator valued measure (POVM). A quantum channel transforms POVM's into POV…
Infinitely entangled states
M. Keyl, D. Schlingemann, R. F. Werner
For states in infinite dimensional Hilbert spaces entanglement quantities like the entanglement of distillation can become infinite. This leads naturally to the question, whether o…
An introduction to quantum coin-tossing
C. Doescher, M. Keyl
We review the quantum version of a well known problem of cryptography called coin tossing (``flipping a coin via telephone''). It can be regarded as a game where two remote players…
The Quantum Monty Hall Problem
G. M. D'Ariano, R. D. Gill, M. Keyl +3
We consider a quantum version of a well-known statistical decision problem, whose solution is, at first sight, counter-intuitive to many. In the quantum version a continuum of poss…
The Rate of Optimal Purification procedures
M. Keyl, R. F. Werner
Purification is a process in which decoherence is partially reversed by using several input systems which have been subject to the same noise. The purity of the outputs generally i…