Related papers: Quantum Computation, Categorical Semantics and Lin…

The paper has been withdrawn by the author.

The paper has been withdrawn

This paper has been withdrawn by the authors, due a oversimplified decoherence model.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This paper has been withdrawn.

The paper has been withdrawn because the research work is still in progress.

This paper has been withdrawn by the author. This draft is withdrawn for its poor quality in english, unfortunately produced by the author when he was just starting his science route. Look at the ICML version instead:…

Paper withdrawn. Replaced by by gr-qc/0212077 .

This paper has been withdrawn by the authors.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This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

This paper has been withdrawn by the author(s)

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author because Lemma 3 is incorrect. This mistake is crucial in this paper.

This paper has been removed.

%auto-ignore Paper has been withdrawn by the author.

This paper has been withdrawn by the authors due to a crucial error.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author(s), due a crucial error on the entanglement of $\Gamma$ registers.

This paper has been withdrawn by the authors because the authors excluded the paper from electronic proceedings of the conference.

The paper has been withdrawn by the author.