Quantum state estimation of multi-partite single photon path entanglement via local measurements
Multipartite entanglement plays a critical role in various applications of quantum internet. In these applications, the entanglement is usually shared by the distant parties. Experimentally, the distributed entanglement should be estimated by only local measurements. Furthermore, for network experim...
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| Format: | Journal Article |
| Language: | English |
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14-10-2024
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| Abstract | Multipartite entanglement plays a critical role in various applications of
quantum internet. In these applications, the entanglement is usually shared by
the distant parties. Experimentally, the distributed entanglement should be
estimated by only local measurements. Furthermore, for network experiments, it
is desirable to employ measurement techniques that are straightforward to
implement. In this paper, we propose a method to measure arbitrary multipartite
single photon path entangled states by only local measurements. By considering
practically reasonable assumptions, our method is relatively easy to implement.
We experimentally demonstrate the utility of this method by reconstructing the
density matrix of a 3-qubit W-state. |
|---|---|
| AbstractList | Multipartite entanglement plays a critical role in various applications of
quantum internet. In these applications, the entanglement is usually shared by
the distant parties. Experimentally, the distributed entanglement should be
estimated by only local measurements. Furthermore, for network experiments, it
is desirable to employ measurement techniques that are straightforward to
implement. In this paper, we propose a method to measure arbitrary multipartite
single photon path entangled states by only local measurements. By considering
practically reasonable assumptions, our method is relatively easy to implement.
We experimentally demonstrate the utility of this method by reconstructing the
density matrix of a 3-qubit W-state. |
| Author | Tanji, Kazufumi Hosaka, Aruto Ikuta, Rikizo Ishi-Hayase, Junko Takeoka, Masahiro Horikiri, Tomoyuki Shimizu, Hikaru Yoshimoto, Joe |
| Author_xml | – sequence: 1 givenname: Hikaru surname: Shimizu fullname: Shimizu, Hikaru – sequence: 2 givenname: Joe surname: Yoshimoto fullname: Yoshimoto, Joe – sequence: 3 givenname: Kazufumi surname: Tanji fullname: Tanji, Kazufumi – sequence: 4 givenname: Aruto surname: Hosaka fullname: Hosaka, Aruto – sequence: 5 givenname: Junko surname: Ishi-Hayase fullname: Ishi-Hayase, Junko – sequence: 6 givenname: Tomoyuki surname: Horikiri fullname: Horikiri, Tomoyuki – sequence: 7 givenname: Rikizo surname: Ikuta fullname: Ikuta, Rikizo – sequence: 8 givenname: Masahiro surname: Takeoka fullname: Takeoka, Masahiro |
| BackLink | https://doi.org/10.48550/arXiv.2410.10185$$DView paper in arXiv |
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| Snippet | Multipartite entanglement plays a critical role in various applications of
quantum internet. In these applications, the entanglement is usually shared by
the... |
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| SubjectTerms | Physics - Quantum Physics |
| Title | Quantum state estimation of multi-partite single photon path entanglement via local measurements |
| URI | https://arxiv.org/abs/2410.10185 |
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