01016nas a2200133 4500008004100000245005100041210005100092300001000143490000700153520063300160653001600793100001400809856005900823 2001 eng d00aClassicality of Quantum Information Processing0 aClassicality of Quantum Information Processing a423190 v653 aThe ultimate goal of the classicality program is to quantify the amount of quantumness of certain processes. Here, classicality is studied for a restricted type of process: quantum information processing (QIP). Under special conditions, one can force some qubits of a quantum computer into a classical state without affecting the outcome of the computation. The minimal set of conditions is described and its structure is studied. Some implications of this formalism are the increase of noise robustness, a proof of the quantumness of mixed state quantum computing and a step forward in understanding the very foundation of QIP.10aFoundations1 aPoulin, D uhttps://www.physique.usherbrooke.ca/pages/en/node/6210