Related papers: Positional decoherence

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors

This paper has been withdrawn by the author due to an error in the proof.

This paper has been withdrawn because it has been by far superseded by the Author's post arXiv:1108.1306v6, which was published on 30/08/2011.

The paper has been withdrawn.

This paper is withdrawn.

The paper is withdrawn.

This paper was withdrawn by the author.

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn by the author.

This paper has been withdrawn

This paper has been withdrawn by the author; see the much expanded, improved, and generalized version at arXiv:0811.2080.

This paper has been withdrawn by the authors because it has been merged with paper arXiv:0903.3501v1 [math.DG]

This paper has been withdrawn, because it is subsumed by the new preprint arXiv:0806.4540 .

This paper has been withdrawn.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn by the author, due to possible counter-examples.

This paper has been withdrawn.