Related papers: Quantum Computation Relative to Oracles

This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

This paper has been withdrawn by the author due to a error in attachment of source file.

This paper has been withdrawn. The main technical result will reappear in the new version of quant-ph/0501003.

The paper has been withdrawn because the research work is still in progress.

This paper has been withdrawn by the author because Lemma 3 is incorrect.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

This paper has been withdrawn by the author due to errors.

This paper has been withdrawn by the authors, due to the discovery of paper 0201028 which predates it and contains most of it's results.

The paper has been withdrawn

This paper has been withdrawn by the authors.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This paper was withdrawn by the author due to a fatal error.

This paper has been withdrawn by the authors.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This paper has been withdrawn by the author due to an error in the data-analysis.

This paper has been withdrawn by the authors due to an error first noted by M. Lukin.

This paper has been retracted, for obvious reasons.

This paper has been withdrawn by the authors due to some technical problems in the paper.

The paper has been withdrawn by the author because the result obtained has been reported earlier by other authors.

This preprint has been withdrawn.

This paper has been withdrawn by the author due to a mistake.

This paper has been withdrawn by the author.

The paper has been withdrawn by the autors. The proposed code is not working because orthogonality.