Entanglement witnesses with local partial ordering
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866916411689926656 |
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| author | Casapao, Joshua Carlo A. Galapon, Eric A. |
| author_facet | Casapao, Joshua Carlo A. Galapon, Eric A. |
| contents | We investigate a class of entanglement witnesses where each witness is formulated as a difference of two product observables. These observables are decomposable into positive semidefinite local operators that obey a partial ordering rule defined over all their possible expectation values. We provide a framework to construct these entanglement witnesses along with some examples. We also discuss methods to improve them both linearly and nonlinearly. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_17689 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Entanglement witnesses with local partial ordering Casapao, Joshua Carlo A. Galapon, Eric A. Quantum Physics We investigate a class of entanglement witnesses where each witness is formulated as a difference of two product observables. These observables are decomposable into positive semidefinite local operators that obey a partial ordering rule defined over all their possible expectation values. We provide a framework to construct these entanglement witnesses along with some examples. We also discuss methods to improve them both linearly and nonlinearly. |
| title | Entanglement witnesses with local partial ordering |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2409.17689 |