Related papers: Withrawn paper

The paper has been withdrawn by the authors.

The authors have withdrawn this paper.

This paper has been withdrawn by the author because there are some typos in proofs.

This paper has been withdrawn by the author due to similarity to the author's other paper

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

This paper has been withdrawn by the author, since one of the key results duplicates existing work, as pointed out by a reader. I am currently revising the manuscript.

This paper has been withdrawn by the author due to an error in the proof of Theorem 1.

This paper has been withdrawn by the author due to a coming paper completely superseding it.

The paper has been withdrawn because the proof of part (b) of the main theorem is incomplete.

This paper has been withdrawn by the author because Lemma 3 is incorrect. This mistake is crucial in this paper.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

Major mistake. The paper has been withdrawn.

This paper has been withdrawn

This paper has been withdrawn by the author due to serious error found in main argument.

The paper has been withdrawn by the author, due to a critical error stemming from the defined template.

This paper has been withdrawn.

This paper has been withdrawn.

The paper has been withdrawn by change of content and some errors in the examples.

%auto-ignore Paper has been withdrawn by the author.

This paper was withdrawn by the authors due to significant new findings. A new paper on the same topic has been submitted as physics/0310159.