Comment on: Preserving Coherence in Quantum Computation by Pairing Quantum Bits
Paolo Zanardi, Mario Rasetti · arXiv (Cornell University) · 1997
We argue that several claims of paper Phys. Rev. Lett 79, 1953 (1997), by Lu-Ming Duan and Guang-Can Guo, are questionable. In particular we stress that the environmental noise considered by the authors belongs to a very special class