Related papers: The Langevin equation from Markovian Quantum Centr…

This paper has been withdrawn by the authors due to a fatal flaw in the central proof.

This paper has been withdrawn by the author due to a crucial error.

The paper has been withdrawn by the author, due to it being fundamentally flawed. The author apologizes for any inconvenience it may have caused.

This paper has been withdrawn at the author's request.

This paper is withdrawn. See quant-ph/9806031 for a discussion.

This paper has been withdrawn by the author due to a coming paper completely superseding it.

This paper has been withdrawn by the author due to a mistake in the proof of the main theorem.

This paper has been withdrawn by the author due to unspecified problems.

This paper has been withdrawn due to a crucial theoretical error.

This paper has been withdrawn by the authors due to a crucial error.

This paper has been withdrawn by the author due to a crucial error in equation.

This paper has been withdrawn by the author due to a crucial error in the formulation.

This paper has been withdrawn due to a crucial theoretical and experimental error.

The paper is withdrawn by the authors and replaced be an improved and extended version arxiv: 0812.2968

This paper has been withdrawn by the author, since some results of the paper have been already obtained in [J.~Lewandowski, Class. Quantum Grav. 9 (1992), no. 10, L147--L151.]

This paper has been withdrawn by the author(s), due a crucial sign error in conclusion .

This paper has been withdrawn.

This paper has been withdrawn. See quant-ph/9806031 for a discussion.

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

This paper has been withdrawn by the author because the arguments presented in the paper is incomplete.