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Computational Quantum Field Theory and Applications to Strong-Field-Induced Vacuum Breakdown and Pair Creation Processes

CQFT

Computational Quantum Field Theory [1-2], developed by the authors, is a useful tool 

that allows for space-time resolved analysis of strong-field induced vacuum breakdown 

and the corresponding pair creation processes. The analysis provides interesting 

insights into resolving the Klein paradox [3] and understanding electron spatial location 

[4]. Such a tool has since been further developed to analyze multiple pair creation 

events and the possible coherence properties of these products [5]. The control of the 

pair creation process has been investigated through strong magnetic fields [6], the 

involvement of bound states [7], self-interaction between created particles [8], and 

exploring possible information transport processes [9-10]. Most recently, machine 

learning techniques have been introduced to speed up the computations [11-12]. This 

work has been supported by the US-NSF, the Research Corporation, and NSF-China.

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[5] T. Cheng, Q. Su and R. Grobe, Phys. Rev. A 80, 013410 (2009).

[6] Q. Su, W. Su, Q.Z. Lv, M. Jiang, X. Lu, Z.M. Sheng and R. Grobe, Phys. Rev. Lett. 109, 253202 (2012). 

[7] Q.Z. Lv, Y. Liu, Y.J. Li, R. Grobe and Q. Su, Phys. Rev. Lett. 111, 183204 (2013). 

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[11] C. Gong, Q. Su and R. Grobe, JOSA B 38, 3582 (2021). 

[12] C. Gong, Q. Su and R. Grobe, Euro. Phys. Lett. 141, 65001 (2023)