663 citations · 1.8k across the 6 of their papers we have counts for
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quant-ph1996★ 111 cited
Reversible quantum operations and their application to teleportation
M. A. Nielsen, Carlton M. Caves
Quantum operations provide a general description of the state changes allowed by quantum mechanics. Simple necessary and sufficient conditions for an ideal quantum operation to be…
quant-ph1996★ 663 cited
Quantum data processing and error correction
Benjamin Schumacher, M. A. Nielsen
This paper investigates properties of noisy quantum information channels. We define a new quantity called {\em coherent information} which measures the amount of quantum informatio…