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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.02757 |
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| _version_ | 1866917204416528384 |
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| author | Yamaguchi, Koji Kempf, Achim |
| author_facet | Yamaguchi, Koji Kempf, Achim |
| contents | We show that encrypted cloning of unknown quantum states is possible. Any number of encrypted clones of a qubit can be created through a unitary transformation, and each of the encrypted clones can be decrypted through a unitary transformation. The decryption of an encrypted clone consumes the decryption key, i.e., only one decryption is possible, in agreement with the no-cloning theorem. Encrypted cloning represents a new paradigm that provides a form of redundancy, parallelism or scalability where direct duplication is forbidden by the no-cloning theorem. For example, a possible application of encrypted cloning is to enable encrypted quantum multi-cloud storage. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_02757 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Encrypted Qubits can be Cloned Yamaguchi, Koji Kempf, Achim Quantum Physics General Relativity and Quantum Cosmology Mathematical Physics We show that encrypted cloning of unknown quantum states is possible. Any number of encrypted clones of a qubit can be created through a unitary transformation, and each of the encrypted clones can be decrypted through a unitary transformation. The decryption of an encrypted clone consumes the decryption key, i.e., only one decryption is possible, in agreement with the no-cloning theorem. Encrypted cloning represents a new paradigm that provides a form of redundancy, parallelism or scalability where direct duplication is forbidden by the no-cloning theorem. For example, a possible application of encrypted cloning is to enable encrypted quantum multi-cloud storage. |
| title | Encrypted Qubits can be Cloned |
| topic | Quantum Physics General Relativity and Quantum Cosmology Mathematical Physics |
| url | https://arxiv.org/abs/2501.02757 |