TY  - JOUR
AB  - Most coding theorems in quantum Shannon theory can be proven using the decoupling technique. To send data through a channel, one guarantees that the environment gets no information about it. Uhlmann's theorem then ensures that the receiver must be able to decode. While a wide range of problems can be solved this way, one of the most basic coding problems remains impervious to a direct application of this method, sending classical information through a quantum channel. We will show that this problem can, in fact, be solved using decoupling ideas, specifically by proving a dequantizing theorem, which ensures that the environment is only classically correlated with the sent data. Our techniques naturally yield a generalization of the Holevo-Schumacher- Westmoreland theorem to the one-shot scenario, where a quantum channel can be applied only once. © 1963-2012 IEEE.
AU  - Dupuis, F
AU  - Szehr, O
AU  - Tomamichel, M
DA  - 2014/01/01
DO  - 10.1109/TIT.2013.2295330
EP  - 1572
JO  - IEEE Transactions on Information Theory
PY  - 2014/01/01
SP  - 1562
TI  - A decoupling approach to classical data transmission over quantum channels
VL  - 60
Y1  - 2014/01/01
Y2  - 2026/07/13
ER  -