Related papers: Quantum cryptography without a quantum channel

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn by the authour.

This paper has been temporarily withdrawn by the authors.

This paper was withdrawn by the author because severe errors were discovered.

This paper has been withdrawn by the authors

There is no abstract for this review article.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author(s),

This paper has been withdrawn.

This paper has been withdrawn due to security loophole. We thank Dr G. P. he for pointing this to us.

This paper has been retracted, for obvious reasons.

This paper is withdrawn as it is equivalent to the paper quant-ph/9605035 by Gilles Brassard.

This paper has been withdrawn. See quant-ph/9806031 for a discussion.

This paper has been withdrawn by the author because in the main text some discussion parts were inadvertently added by mistake.

This paper has been withdrawn by the authors as they feel it inappropriate to publish this paper for the time being.

This paper has been withdrawn.

The article is taken out.

This paper has been withdrawn by the authors due to numerical problems to get viable results.

This paper has been withdrawn due to that the same conclusion has been proposed before.

%auto-ignore Paper has been withdrawn by the author.