Degenerate detectors are unable to harvest spacelike entanglement
We show, under a very general set of assumptions, that pairs of identical particle detectors in spacelike separation, such as atomic probes, can only harvest entanglement from the vacuum state of a quantum field when they have a nonzero energy gap. Furthermore, we show that degenerate probes are str...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
American Physical Society
2017
|
| Online Access: | https://eprints.nottingham.ac.uk/43838/ |
| _version_ | 1848796778640441344 |
|---|---|
| author | Pozas-Kerstjens, Alejandro Louko, Jorma Martín-Martínez, Eduardo |
| author_facet | Pozas-Kerstjens, Alejandro Louko, Jorma Martín-Martínez, Eduardo |
| author_sort | Pozas-Kerstjens, Alejandro |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We show, under a very general set of assumptions, that pairs of identical particle detectors in spacelike separation, such as atomic probes, can only harvest entanglement from the vacuum state of a quantum field when they have a nonzero energy gap. Furthermore, we show that degenerate probes are strongly challenged to become entangled through their interaction through scalar and electromagnetic fields even in full light contact. We relate these results to previous literature on remote entanglement generation and entanglement harvesting, giving insight into the energy gap’s protective role against local noise, which prevents the detectors from getting entangled through the interaction with the field. |
| first_indexed | 2025-11-14T19:53:23Z |
| format | Article |
| id | nottingham-43838 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:53:23Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-438382020-05-04T18:47:27Z https://eprints.nottingham.ac.uk/43838/ Degenerate detectors are unable to harvest spacelike entanglement Pozas-Kerstjens, Alejandro Louko, Jorma Martín-Martínez, Eduardo We show, under a very general set of assumptions, that pairs of identical particle detectors in spacelike separation, such as atomic probes, can only harvest entanglement from the vacuum state of a quantum field when they have a nonzero energy gap. Furthermore, we show that degenerate probes are strongly challenged to become entangled through their interaction through scalar and electromagnetic fields even in full light contact. We relate these results to previous literature on remote entanglement generation and entanglement harvesting, giving insight into the energy gap’s protective role against local noise, which prevents the detectors from getting entangled through the interaction with the field. American Physical Society 2017-05-30 Article PeerReviewed Pozas-Kerstjens, Alejandro, Louko, Jorma and Martín-Martínez, Eduardo (2017) Degenerate detectors are unable to harvest spacelike entanglement. Physical Review D, 95 (10). p. 105009. ISSN 2470-0029 https://doi.org/10.1103/PhysRevD.95.105009 doi:10.1103/PhysRevD.95.105009 doi:10.1103/PhysRevD.95.105009 |
| spellingShingle | Pozas-Kerstjens, Alejandro Louko, Jorma Martín-Martínez, Eduardo Degenerate detectors are unable to harvest spacelike entanglement |
| title | Degenerate detectors are unable to harvest spacelike entanglement |
| title_full | Degenerate detectors are unable to harvest spacelike entanglement |
| title_fullStr | Degenerate detectors are unable to harvest spacelike entanglement |
| title_full_unstemmed | Degenerate detectors are unable to harvest spacelike entanglement |
| title_short | Degenerate detectors are unable to harvest spacelike entanglement |
| title_sort | degenerate detectors are unable to harvest spacelike entanglement |
| url | https://eprints.nottingham.ac.uk/43838/ https://eprints.nottingham.ac.uk/43838/ https://eprints.nottingham.ac.uk/43838/ |