Perturbative calculation of field space entanglement entropy
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2019
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| _version_ | 1866918334773067776 |
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| author | Brister, James |
| author_facet | Brister, James |
| contents | We present a general method for the perturbative calculation of the entanglement entropy between two interacting quantum fields. Previous attempts at calculating this quantity perturbatively have encountered a seemingly pathological divergence; we explain why this divergence is a result of improperly truncating a series expansion and give a prescription for avoiding this problem. We then apply our method to a simple example of two mass-mixing scalar fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1906_00641 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Perturbative calculation of field space entanglement entropy Brister, James High Energy Physics - Theory Quantum Physics We present a general method for the perturbative calculation of the entanglement entropy between two interacting quantum fields. Previous attempts at calculating this quantity perturbatively have encountered a seemingly pathological divergence; we explain why this divergence is a result of improperly truncating a series expansion and give a prescription for avoiding this problem. We then apply our method to a simple example of two mass-mixing scalar fields. |
| title | Perturbative calculation of field space entanglement entropy |
| topic | High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/1906.00641 |