Related papers: Optimality of the Heisenberg limit for continuous-…

This paper has been withdrawn.

Noise is the greatest obstacle in quantum metrology that limits it achievable precision and sensitivity. There are many techniques to mitigate the effect of noise, but this can never be done completely. One commonly proposed technique is to…

The paper has been withdrawn by the author, due to a critical error stemming from the defined template.

This paper has been withdrawn by the authors due to a crucial gap in the estimates for m>=4.

This paper has been withdrawn by the authors. Significantly revised versions of the results of this paper are now available in arXiv:0707.0487v2 and arXiv:0808.3169v1.

This paper has been withdrawn by the author. Improved versions (arXiv:1109.5548 and arXiv:0708.4190) are accepted.

This paper has been withdrawn by the author.

This paper is withdrawn because of an error in Lemma 3.1

This paper has been withdrawn while the author verifies the literature.

This paper has been withdrawn due a crucial mistake due to a crucial mistake in the proof of Lemma 2.3.

This paper has been withdrawn by the author, due an error in computing the invariance of the so(4,1) and so(3,2) "inner product."

This paper has been withdrawn by the author due to an error in the computation of the central charge.

This paper has been withdrawn by the authors due to an unlikely results.

This paper has been withdrawn by the authors

This paper has been withdrawn by the author because Lemma 3 is incorrect.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This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn by the author due to a mistake in one of the main lemmas.

This paper has been withdrawn by the first author due to disagreement with experiments.

This paper has been withdrawn by the authors due to a gap in the proof of the main result (in 5.3).