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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.23824 |
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| _version_ | 1866911709275357184 |
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| author | Pye, Jason Hingane, Atharva Jonsson, Robert H. |
| author_facet | Pye, Jason Hingane, Atharva Jonsson, Robert H. |
| contents | Vacuum entanglement is a fundamental feature of quantum field theory exhibiting rich structure that is not completely understood. Here, we provide a complete characterization of the entanglement between two bounded spacelike-separated regions in a (1+1)-dimensional free massless real scalar field. Employing Gaussian state methods, we analytically compute the logarithmic negativity and construct closed-form solutions for the localized modes carrying it, called negativity cores. These results deepen our understanding of quantum fields and suggest extensions to higher dimensions and fermionic fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_23824 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The negativity core of a 1+1D massless scalar quantum field Pye, Jason Hingane, Atharva Jonsson, Robert H. High Energy Physics - Theory Quantum Physics Vacuum entanglement is a fundamental feature of quantum field theory exhibiting rich structure that is not completely understood. Here, we provide a complete characterization of the entanglement between two bounded spacelike-separated regions in a (1+1)-dimensional free massless real scalar field. Employing Gaussian state methods, we analytically compute the logarithmic negativity and construct closed-form solutions for the localized modes carrying it, called negativity cores. These results deepen our understanding of quantum fields and suggest extensions to higher dimensions and fermionic fields. |
| title | The negativity core of a 1+1D massless scalar quantum field |
| topic | High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2605.23824 |