Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field
Abstract We study two accelerating Unruh-DeWitt detectors coupled linearly or quadratically with a scalar field, by using an approach different from previous ones. We use Rindler frame, and integrate over the spacetime coordinates before over the momenta. In this way, the divergent problem previousl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2023)037 |
| _version_ | 1797233811737542656 |
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| author | Dawei Wu Shan-Chang Tang Yu Shi |
| author_facet | Dawei Wu Shan-Chang Tang Yu Shi |
| author_sort | Dawei Wu |
| collection | DOAJ |
| description | Abstract We study two accelerating Unruh-DeWitt detectors coupled linearly or quadratically with a scalar field, by using an approach different from previous ones. We use Rindler frame, and integrate over the spacetime coordinates before over the momenta. In this way, the divergent problem previously encountered is avoided. We show that entanglement between the detectors can be created by coupling with the field, and is divergent only in the limit that the two detectors coincide in spacetime. For linear coupling, entanglement increases monotonically with the decrease of acceleration, as previously found, while for quadratic coupling, entanglement behaves non-monotonically, as noted for the first time. |
| first_indexed | 2024-03-09T01:22:15Z |
| format | Article |
| id | doaj.art-29609c7cf0154e5a8063e1437b0dcd31 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-24T16:22:06Z |
| publishDate | 2023-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-29609c7cf0154e5a8063e1437b0dcd312024-03-31T11:08:29ZengSpringerOpenJournal of High Energy Physics1029-84792023-12-0120231212310.1007/JHEP12(2023)037Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar fieldDawei Wu0Shan-Chang Tang1Yu Shi2Department of Physics, Fudan UniversityDepartment of Physics, Fudan UniversityDepartment of Physics, Fudan UniversityAbstract We study two accelerating Unruh-DeWitt detectors coupled linearly or quadratically with a scalar field, by using an approach different from previous ones. We use Rindler frame, and integrate over the spacetime coordinates before over the momenta. In this way, the divergent problem previously encountered is avoided. We show that entanglement between the detectors can be created by coupling with the field, and is divergent only in the limit that the two detectors coincide in spacetime. For linear coupling, entanglement increases monotonically with the decrease of acceleration, as previously found, while for quadratic coupling, entanglement behaves non-monotonically, as noted for the first time.https://doi.org/10.1007/JHEP12(2023)037Models of Quantum GravityNon-Equilibrium Field Theory |
| spellingShingle | Dawei Wu Shan-Chang Tang Yu Shi Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field Journal of High Energy Physics Models of Quantum Gravity Non-Equilibrium Field Theory |
| title | Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field |
| title_full | Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field |
| title_fullStr | Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field |
| title_full_unstemmed | Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field |
| title_short | Birth and death of entanglement between two accelerating Unruh-DeWitt detectors coupled with a scalar field |
| title_sort | birth and death of entanglement between two accelerating unruh dewitt detectors coupled with a scalar field |
| topic | Models of Quantum Gravity Non-Equilibrium Field Theory |
| url | https://doi.org/10.1007/JHEP12(2023)037 |
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