No-cloning with unitary scaling
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866918502643793920 |
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| author | Li, Dafa |
| author_facet | Li, Dafa |
| contents | It is known that the classical information like strings of bits can be copied. In 1982, Wootters and Zurek proposed the quantum no-cloning principle. No-cloning principle says that it is impossible to make an identical copy of an arbitrary unknown quantum pure state by using unitary evolution. In this paper, we call U $|ψ>$, where U is any unitary operator, a U-copy of the state $|ψ>$ and show it is impossible to make a U-copy of an arbitrary unknown quantum pure state by using unitary evolution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22960 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | No-cloning with unitary scaling Li, Dafa Quantum Physics It is known that the classical information like strings of bits can be copied. In 1982, Wootters and Zurek proposed the quantum no-cloning principle. No-cloning principle says that it is impossible to make an identical copy of an arbitrary unknown quantum pure state by using unitary evolution. In this paper, we call U $|ψ>$, where U is any unitary operator, a U-copy of the state $|ψ>$ and show it is impossible to make a U-copy of an arbitrary unknown quantum pure state by using unitary evolution. |
| title | No-cloning with unitary scaling |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.22960 |