Related papers: Continuous-Variables Quantum Key Distribution over…

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors because the paper is largely revised and improved, and to appear in Mechanics Research Communications.

The paper has been withdrawn.

This paper was withdrawn by the author.

This paper has been withdrawn due to security loophole.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

This paper has been withdrawn by the author

The paper has been withdrawn by the authors

This paper has been withdrawn

This paper has been withdrawn.

This paper is withdrawn as it is equivalent to the paper quant-ph/9605035 by Gilles Brassard.

This paper was withdrawn on 20.11.97.

This paper has been withdrawn

This paper has been withdrawn by the author because in the main text some discussion parts were inadvertently added by mistake.

This paper has been withdrawn.

This paper has been withdrawn by the author(s),

This paper has been withdrawn.

This paper has been withdrawn

This paper has been withdrawn

This paper has been withdrawn as it has been superseded by postings arXiv:quant-ph/0702147 and arXiv:0712.2935