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This paper has been withdrawn by the authors due to some technical problems in the paper.

This paper has been withdrawn by the author due to pending experimental investigation to avoid certain potential experimental uncertainty.

This paper has been withdrawn by the authors due to substantial changes.

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

This paper has been withdrawn by the authors due to an error in the main theorem.

This paper has been withdrawn by the author.

This paper has been withdrawn.

This paper has been withdrawn by the author(s),

This paper has been withdrawn by the authors and replaced by the revised version in arXiv:0709.1772.

This paper has been withdrawn by the author, due to a crucial error in the proof of Thm.1

This paper has been withdrawn by the author due to inconsistency of the considered working hypothesis. The consistent treatment is presented in the last publications of the author.

This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

The paper has been withdrawn by the author because the result obtained has been reported earlier by other authors.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author because the conclusions reached in it are incorrect.

This paper has been withdrawn, because relevant publications, related to the subject of the paper, were overlooked by the author.

This paper has been withdrawn by the authors, since the reference citation were not appropriately arranged.

This paper has been withdrawn at the request of one of the authors.

This paper has been withdrawn by the author because the arguments presented in the paper is incomplete.

This paper has been withdrawn by the author due to some mistakes