Sharing quantum indistinguishability with multiple parties
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913063672741888 |
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| author | Wang, Lemieux Lee, Hanwool Bae, Joonwoo Flatt, Kieran |
| author_facet | Wang, Lemieux Lee, Hanwool Bae, Joonwoo Flatt, Kieran |
| contents | Quantum indistinguishability of non-orthogonal quantum states is a valuable resource in quantum information applications such as cryptography and randomness generation. In this article, we present a sequential state-discrimination scheme that enables multiple parties to share quantum uncertainty, in terms of the max relative entropy, generated by a single party. Our scheme is based upon maximum-confidence measurements and takes advantages of weak measurements to allow a number of parties to perform state discrimination on a single quantum system. We review known sequential state discrimination and show how our scheme would work through a number of examples where ensembles may or may not contain symmetries. Our results will have a role to play in understanding the ultimate limits of sequential information extraction and guide the development of quantum resource sharing in sequential settings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15199 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sharing quantum indistinguishability with multiple parties Wang, Lemieux Lee, Hanwool Bae, Joonwoo Flatt, Kieran Quantum Physics Quantum indistinguishability of non-orthogonal quantum states is a valuable resource in quantum information applications such as cryptography and randomness generation. In this article, we present a sequential state-discrimination scheme that enables multiple parties to share quantum uncertainty, in terms of the max relative entropy, generated by a single party. Our scheme is based upon maximum-confidence measurements and takes advantages of weak measurements to allow a number of parties to perform state discrimination on a single quantum system. We review known sequential state discrimination and show how our scheme would work through a number of examples where ensembles may or may not contain symmetries. Our results will have a role to play in understanding the ultimate limits of sequential information extraction and guide the development of quantum resource sharing in sequential settings. |
| title | Sharing quantum indistinguishability with multiple parties |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2512.15199 |