T. S. Cubitt, Chen, J., and Harrow, A. W.,
“Superactivation of the Asymptotic Zero-Error Classical Capacity of a Quantum Channel”,
IEEE Transactions on Information Theory, vol. 57, no. 12, pp. 8114 - 8126, 2011.
J. Chen, Cubitt, T. S., Harrow, A. W., and Smith, G.,
“Entanglement can completely defeat quantum noise”,
Physical Review Letters, vol. 107, no. 25, 2011.