00768nas a2200133   4500000000100000000000100001008004100002100001900043700002200062245008000084856004600164490000700210520041700217       2016                            d1 aŁukasz Pawela1 aZbigniew Puchała00aQuantifying channels output similarity with applications to quantum control  uhttps://doi.org/10.1007/s11128-015-1238-z0 v153 a<p>In this work we aim at quantifying quantum channel output similarity. In order to achieve this, we introduce the notion of quantum channel superfidelity, which gives us an upper bound on the quantum channel fidelity. This quantity is expressed in a clear form using the Kraus representation of a quantum channel. As examples, we show potential applications of this quantity in the quantum control field.</p>