Related papers: Quantum Bit Commitment Expansion

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This paper has been withdrawn because the author no longer believes the firewall argument is correct.

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The paper is withdrawn. The proof has an error and it requires a different approach.

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This paper has been withdrawn by the authors, due a oversimplified decoherence model.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

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This paper has been withdrawn by the author, due to a crucial error in the proof of Lemma 3.1.

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