Dynamically assisted Schwinger effect at strong coupling with its holographic extension
Abstract At strong-coupling and weak-field limit, the scalar Schwinger effect is studied by the field-theoretical method of worldline instantons for dynamic fields of single-pulse and sinusoidal types. By examining the Wilson loop along the closed instanton path, corrections to the results obtained...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7405-0 |
| _version_ | 1819208157868589056 |
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| author | Chen Lan Yi-Fan Wang Huifang Geng Alexander Andreev |
| author_facet | Chen Lan Yi-Fan Wang Huifang Geng Alexander Andreev |
| author_sort | Chen Lan |
| collection | DOAJ |
| description | Abstract At strong-coupling and weak-field limit, the scalar Schwinger effect is studied by the field-theoretical method of worldline instantons for dynamic fields of single-pulse and sinusoidal types. By examining the Wilson loop along the closed instanton path, corrections to the results obtained from weak-coupling approximations are discovered. They show that this part of contribution for production rate becomes dominant as Keldysh parameter increases, it makes the consideration at strong coupling turn out to be indispensable for dynamic fields. Moreover a breaking of weak-field condition similar to constant field also happens around the critical field, defined as a point of vacuum cascade. In order to make certain whether the vacuum cascade occurs beyond the weak-field condition, following Semenoff and Zarembo’s proposal, the Schwinger effects of dynamic fields are studied with an $${\mathcal {N}}=4$$ N=4 supersymmetric Yang–Mills theory in the Coulomb phase. With the help of the gauge/gravity duality, the vacuum decay rate is evaluated by the string action with instanton worldline as boundary, which is located on a probe D3–brane. The corresponding classical worldsheets are estimated by perturbing the integrable case of a constant field. |
| first_indexed | 2024-12-23T05:34:56Z |
| format | Article |
| id | doaj.art-13731f0c6b904e4388a4cc162f2d7e3c |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-23T05:34:56Z |
| publishDate | 2019-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-13731f0c6b904e4388a4cc162f2d7e3c2022-12-21T17:58:22ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-11-01791111210.1140/epjc/s10052-019-7405-0Dynamically assisted Schwinger effect at strong coupling with its holographic extensionChen Lan0Yi-Fan Wang1Huifang Geng2Alexander Andreev3ELI-ALPS Research Institute, ELI-Hu NKftInstitut für Theoretische Physik, Universität zu KölnELI-ALPS Research Institute, ELI-Hu NKftELI-ALPS Research Institute, ELI-Hu NKftAbstract At strong-coupling and weak-field limit, the scalar Schwinger effect is studied by the field-theoretical method of worldline instantons for dynamic fields of single-pulse and sinusoidal types. By examining the Wilson loop along the closed instanton path, corrections to the results obtained from weak-coupling approximations are discovered. They show that this part of contribution for production rate becomes dominant as Keldysh parameter increases, it makes the consideration at strong coupling turn out to be indispensable for dynamic fields. Moreover a breaking of weak-field condition similar to constant field also happens around the critical field, defined as a point of vacuum cascade. In order to make certain whether the vacuum cascade occurs beyond the weak-field condition, following Semenoff and Zarembo’s proposal, the Schwinger effects of dynamic fields are studied with an $${\mathcal {N}}=4$$ N=4 supersymmetric Yang–Mills theory in the Coulomb phase. With the help of the gauge/gravity duality, the vacuum decay rate is evaluated by the string action with instanton worldline as boundary, which is located on a probe D3–brane. The corresponding classical worldsheets are estimated by perturbing the integrable case of a constant field.http://link.springer.com/article/10.1140/epjc/s10052-019-7405-0 |
| spellingShingle | Chen Lan Yi-Fan Wang Huifang Geng Alexander Andreev Dynamically assisted Schwinger effect at strong coupling with its holographic extension European Physical Journal C: Particles and Fields |
| title | Dynamically assisted Schwinger effect at strong coupling with its holographic extension |
| title_full | Dynamically assisted Schwinger effect at strong coupling with its holographic extension |
| title_fullStr | Dynamically assisted Schwinger effect at strong coupling with its holographic extension |
| title_full_unstemmed | Dynamically assisted Schwinger effect at strong coupling with its holographic extension |
| title_short | Dynamically assisted Schwinger effect at strong coupling with its holographic extension |
| title_sort | dynamically assisted schwinger effect at strong coupling with its holographic extension |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7405-0 |
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