Related papers: Robust String Matching in O(\sqrt{N}+M) Quantum Qu…

This paper has been withdrawn by the author.

This paper has been withdrawn by the author, due an error in computing the invariance of the so(4,1) and so(3,2) "inner product."

This paper has been withdrawn due to crucial erros in equations (24)--(31).

Major mistake. The paper has been withdrawn.

This paper has been withdrawn by the authors. We have discovered an error in the evaluation of the diagram, which invalidates our conclusion.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

This paper has been withdrawn

This paper has been withdrawn by the author, due to a crucial error in the proof of Thm.1

This paper has been retracted, for obvious reasons.

%auto-ignore Paper has been withdrawn by the author.

This paper has been withdrawn due to an error. We plan to replace it with a corrected version.

This paper has been withdrawn by the author due to a crucial sign error in equation.

This paper has been withdrawn by the author.

This paper has been withdrawn by author due to an error in the proof.

This paper has been withdrawn by the author due to an apparent misunderstanding of quantum feedback control.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors due to an error.

This paper has been withdrawn due to security loophole. We thank Dr G. P. he for pointing this to us.

The paper has been withdrawn.

The authors have found an error in their argument, so this paper is withdrawn.