Harvesting stabilizer entropy and non-locality from a quantum field
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866918208461602816 |
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| author | Cepollaro, S. Cusumano, S. Hamma, A. Giudice, G. Lo Odavic, J. |
| author_facet | Cepollaro, S. Cusumano, S. Hamma, A. Giudice, G. Lo Odavic, J. |
| contents | The harvesting of quantum resources from the vacuum state of a quantum field is a central topic in relativistic quantum information. While several proposals for the harvesting of entanglement from the quantum vacuum exist, less attention has been paid to other quantum resources, such as non-stabilizerness, commonly dubbed {\em magic} and quantified by the Stabilizer Rényi Entropy (SRE). In this work, we show how to harvest SRE from the vacuum state of a massless field using accelerated Unruh-DeWitt detectors in Minkowski spacetime. In particular, one can harvest a particular non-local form of SRE that cannot be erased by local unitary operations. This non-local SRE is a fundamental quantity to study the interplay between entanglement and non-stabilizer resources. We conclude our work with an analysis of the CHSH inequalities: when restricting to stabilizer measurements, i.e. Pauli measurements, one cannot extract a violation from the quantum field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_11918 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Harvesting stabilizer entropy and non-locality from a quantum field Cepollaro, S. Cusumano, S. Hamma, A. Giudice, G. Lo Odavic, J. Quantum Physics High Energy Physics - Theory The harvesting of quantum resources from the vacuum state of a quantum field is a central topic in relativistic quantum information. While several proposals for the harvesting of entanglement from the quantum vacuum exist, less attention has been paid to other quantum resources, such as non-stabilizerness, commonly dubbed {\em magic} and quantified by the Stabilizer Rényi Entropy (SRE). In this work, we show how to harvest SRE from the vacuum state of a massless field using accelerated Unruh-DeWitt detectors in Minkowski spacetime. In particular, one can harvest a particular non-local form of SRE that cannot be erased by local unitary operations. This non-local SRE is a fundamental quantity to study the interplay between entanglement and non-stabilizer resources. We conclude our work with an analysis of the CHSH inequalities: when restricting to stabilizer measurements, i.e. Pauli measurements, one cannot extract a violation from the quantum field. |
| title | Harvesting stabilizer entropy and non-locality from a quantum field |
| topic | Quantum Physics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.11918 |