Impossible to conjugate an unknown quantum state via a unitary evolution

Abstract:The no-cloning theorem, the no-deleting theorem, the no-hiding theorem, the no-flip theorem, and the no-broadcasting play a crucial role in quantum mechanics and quantum information. In this paper, we propose the no-conjugating theorem which states that it is impossible to conjugate an unknown arbitrary quantum state via a universal physical device or linear/unitary operation.

arXiv:2609.11536 [quant-ph]

(or arXiv:2609.11536v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2609.11536 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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