Related papers: Quantum algorithm for the longest common subsequen…

This paper has been withdrawn due to crucial erros in equations (24)--(31).

This paper has been withdrawn by the author(s).The scheme presented is insecure.

This paper has been withdrawn by the author due to some mistakes

This paper has been withdrawn

This paper has been withdrawn by the author due to some errors.

This paper has been withdrawn by the authors, due a oversimplified decoherence model. It will be substituted by a new work.

This paper has been withdrawn by the author due to a crucial sign error in Theorem 3.4.

This paper has being withdrawn by the authors due to an error in the conclusion.

This paper has been temporarily withdrawn by the authors.

This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.

This paper has been withdrawn by the author

The paper has been withdrawn

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author, as it is now incorporated in 0901.4506 (v4)

This paper has been withdrawn by the author due to an apparent misunderstanding of quantum feedback control.

This paper was withdrawn by the author.

This paper has been withdrawn by the author due to a misunderstanding.

This paper has been withdrawn by the authors due to an error first noted by M. Lukin.

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn by the authors.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