%0 Journal Article %T Quantum state protection using all-optical feedback %A Paolo Tombesi %A Vittorio Giovannetti %A David Vitali %J Physics %D 2000 %I arXiv %X An all-optical feedback scheme in which the output of a cavity mode is used to influence the dynamics of another cavity mode is considered. We show that under ideal conditions, perfect preservation against decoherence of a generic quantum state of the source mode can be achieved. %U http://arxiv.org/abs/quant-ph/0004027v1