TY - GEN
T1 - Zero-error capacity of quantum channels and noiseless subsystems
AU - Medeiros, Rex A.C.
AU - Alléaume, Romain
AU - Cohen, Gérard
AU - De Assis, Francisco M.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - This paper investigates connections between the theory of quantum noiseless subsystems and the zero-error capacity of quantum channels. In particular, we show that if we have a noiseless subsystem state ρ supported by a projector P, then any quantum state with components in the subspace P⊥ is adjacent to ρ. This result has some interesting implications for the quantum states of the optimum (S,P) for which the zero-error capacity is reached.
AB - This paper investigates connections between the theory of quantum noiseless subsystems and the zero-error capacity of quantum channels. In particular, we show that if we have a noiseless subsystem state ρ supported by a projector P, then any quantum state with components in the subspace P⊥ is adjacent to ρ. This result has some interesting implications for the quantum states of the optimum (S,P) for which the zero-error capacity is reached.
KW - Noiseless subsystems
KW - Quantum channel capacity
KW - Zero-error capacity
UR - https://www.scopus.com/pages/publications/50449092275
U2 - 10.1109/ITS.2006.4433399
DO - 10.1109/ITS.2006.4433399
M3 - Conference contribution
AN - SCOPUS:50449092275
SN - 8589748049
SN - 9788589748049
T3 - 2006 International Telecommunications Symposium, ITS
SP - 900
EP - 905
BT - 2006 International Telecommunications Symposium, ITS
T2 - 2006 International Telecommunications Symposium, ITS
Y2 - 3 September 2006 through 6 September 2006
ER -