Related papers: Quantum logic gates and maximally entangled states…
This paper has been withdrawn by the author due to some problems.
This paper has been withdrawn by the authors because the results obtained have been reported earlier by other authors.
This paper has been withdrawn by the author, due a crucial error in the optimization. For the last one month I have been trying to remove the error, but it seems to take a lot of time so I decided to withdraw this paper for the moment.
This paper was withdrawn by the author because severe errors were discovered.
This paper has been withdrawn.
This paper has been withdrawn by the author because in the main text some discussion parts were inadvertently added by mistake.
This paper has been withdrawn by the authors due to some technical problems in the paper.
This paper has been withdrawn by the author due to the incorrect argument for the security.
This paper has been withdrawn by the author due to errors.
The paper has been withdrawn by the author because the result obtained has been reported earlier by other authors.
This paper has been withdrawn, and will be superseded by another submission.
This paper has been withdrawn by the author(s), due a crucial sign error in conclusion .
This paper has been withdrawn by the author(s), due a crucial error on the entanglement of $\Gamma$ registers.
This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.
This paper has been withdrawn by the authors.
This paper has been withdrawn as it has been superseded by postings arXiv:quant-ph/0702147 and arXiv:0712.2935
This paper has been withdrawn by the author(s) in the light of several other works available and due to a misunderstanding in the authorships.
This paper has been withdrawn.
This paper has been withdrawn by the author.
This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.