A Comment on the Letter by M. H. Devoret, J. M. Martinis, and J. Clarke, Phys. Rev. Lett. 55, 1908 (1985).Received 9 January 1989DOI:https://doi.org/10.1103/PhysRevLett.63.211©1989 American Physical Society
Michel DevoretJohn M. MartinisJohn Clarke
John ClarkeMichel DevoretJohn M. MartinisD. Estève
Michel DevoretD. EstèveC. UrbinaJohn M. MartinisA. N. ClelandJohn Clarke
Devoret, M.H.Martinis, J.M.Esteve, D.