Fermionic entanglement in the presence of background electric and magnetic fields
Abstract In this study, we investigate the fermionic Schwinger effect in the presence of a constant magnetic field within $$(1+3)$$ ( 1 + 3 ) -dimensional Minkowski spacetime, considering both constant and pulsed electric fields. We analyze the correlations between Schwinger pairs for the vacuum and...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-13796-9 |
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| author | Shagun Kaushal |
| author_facet | Shagun Kaushal |
| author_sort | Shagun Kaushal |
| collection | DOAJ |
| description | Abstract In this study, we investigate the fermionic Schwinger effect in the presence of a constant magnetic field within $$(1+3)$$ ( 1 + 3 ) -dimensional Minkowski spacetime, considering both constant and pulsed electric fields. We analyze the correlations between Schwinger pairs for the vacuum and maximally entangled states of two fermionic fields. The correlations are quantified using entanglement entropy and Bell’s inequality violation for the vacuum state, while Bell’s inequality violation and mutual information are used for the maximally entangled state. One can observe the variation of the entanglement produced for fermionic modes with respect to different parameters. Additionally, we discuss the key differences from the behaviour of scalar fields in this context. This study offers deeper insights into quantum field theory and the dynamics of entanglement in the fermionic Schwinger effect. |
| format | Article |
| id | doaj-art-a6c9fc4ca2b14744a00a63c1cf5e3c9e |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-a6c9fc4ca2b14744a00a63c1cf5e3c9e2025-01-26T12:49:21ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-01-0185111610.1140/epjc/s10052-025-13796-9Fermionic entanglement in the presence of background electric and magnetic fieldsShagun Kaushal0Department of Physics, Indian Institute of Technology DelhiAbstract In this study, we investigate the fermionic Schwinger effect in the presence of a constant magnetic field within $$(1+3)$$ ( 1 + 3 ) -dimensional Minkowski spacetime, considering both constant and pulsed electric fields. We analyze the correlations between Schwinger pairs for the vacuum and maximally entangled states of two fermionic fields. The correlations are quantified using entanglement entropy and Bell’s inequality violation for the vacuum state, while Bell’s inequality violation and mutual information are used for the maximally entangled state. One can observe the variation of the entanglement produced for fermionic modes with respect to different parameters. Additionally, we discuss the key differences from the behaviour of scalar fields in this context. This study offers deeper insights into quantum field theory and the dynamics of entanglement in the fermionic Schwinger effect.https://doi.org/10.1140/epjc/s10052-025-13796-9 |
| spellingShingle | Shagun Kaushal Fermionic entanglement in the presence of background electric and magnetic fields European Physical Journal C: Particles and Fields |
| title | Fermionic entanglement in the presence of background electric and magnetic fields |
| title_full | Fermionic entanglement in the presence of background electric and magnetic fields |
| title_fullStr | Fermionic entanglement in the presence of background electric and magnetic fields |
| title_full_unstemmed | Fermionic entanglement in the presence of background electric and magnetic fields |
| title_short | Fermionic entanglement in the presence of background electric and magnetic fields |
| title_sort | fermionic entanglement in the presence of background electric and magnetic fields |
| url | https://doi.org/10.1140/epjc/s10052-025-13796-9 |
| work_keys_str_mv | AT shagunkaushal fermionicentanglementinthepresenceofbackgroundelectricandmagneticfields |