PT Journal
AU Shor, PW
TI Quantum information theory: The bits don't add up
SO Nature Physics
JI Nat. Phys.
PY 2009
BP 247
EP 248
VL 5
DE fromIPMRAS
AB A counterexample to the 'additivity question', the most celebrated open problem in the mathematical theory of quantum information, casts doubt on the possibility of finding a simple expression for the information capacity of a quantum channel.
ER