Related papers: Redacted

This paper has been removed by arXiv administrators because it plagiarizes gr-qc/0404108, gr-qc/0306101, hep-th/0301046, and gr-qc/0303034.

This submission has been withdrawn at the request of the author.

This paper has been withdrawn by the author due to similarity to Author's other paper

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors due to a major rewriting.

This paper has been withdrawn by the authors. Significantly revised versions of the results of this paper are now available in arXiv:0707.0487v2 and arXiv:0808.3169v1.

This paper has been withdrawn by the author due to a crucial error.

This preprint has been withdrawn. It is because I will never publish this preprint since everything has been contained in my new preprint: arXiv:0907.1506. Please refer to arXiv:0907.1506. Please do not cite this preprint any more.

This paper was withdrawn by arXiv administrators upon request of the Chairperson and Spokesperson of the L3 Collaboration.

This paper has been withdrawn by the author: it was a too preliminary version.

This paper has been withdrawn by the author; see the much expanded, improved, and generalized version at arXiv:0811.2080.

This paper has been removed by arXiv administrators because it plagiarizes gr-qc/9910015, gr-qc/0008034, and hep-th/0308070. This paper also has excessive overlap with the following papers also written by the authors or their collaborators:…

This paper has been withdrawn by the author due to a crucial error in the submission action.

Withdrawn -- a revised version will appear in due course.

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

The paper is taken out.

This paper has been withdrawn by the author.

Paper has been withdrawn for major repairs.

This paper has been withdrawn by the author, due an error in the proof of Proposion 2.13.