Time-like Entanglement Entropy: a top-down approach
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913937637769216 |
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| author | Nunez, Carlos Roychowdhury, Dibakar |
| author_facet | Nunez, Carlos Roychowdhury, Dibakar |
| contents | We investigate the concept of time-like entanglement entropy (tEE) within the framework of holography. We introduce a robust top-down prescription for computing tEE in higher-dimensional QFTs, both conformal and confining, eliminating the ambiguities typically associated with analytic continuation from Euclidean to Lorentzian signatures. We present accurate analytic approximations for tEE and time-like separations in slab geometries. We establish a clear stability criterion for bulk embeddings and demonstrate that tEE serves as a powerful tool for computing CFT central charges, extending and strengthening previous results. Finally, we apply our framework to holographic confining backgrounds, revealing distinctive behaviours like phase transitions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20388 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Time-like Entanglement Entropy: a top-down approach Nunez, Carlos Roychowdhury, Dibakar High Energy Physics - Theory We investigate the concept of time-like entanglement entropy (tEE) within the framework of holography. We introduce a robust top-down prescription for computing tEE in higher-dimensional QFTs, both conformal and confining, eliminating the ambiguities typically associated with analytic continuation from Euclidean to Lorentzian signatures. We present accurate analytic approximations for tEE and time-like separations in slab geometries. We establish a clear stability criterion for bulk embeddings and demonstrate that tEE serves as a powerful tool for computing CFT central charges, extending and strengthening previous results. Finally, we apply our framework to holographic confining backgrounds, revealing distinctive behaviours like phase transitions. |
| title | Time-like Entanglement Entropy: a top-down approach |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2505.20388 |