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Schwinger particle production: Rapid switch off of the external field versus dynamical assistance. / Александров, Иван Александрович; Севостьянов, Денис Геннадьевич; Шабаев, Владимир Моисеевич.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 111, No. 1, 016010, 10.01.2025.

Research output: Contribution to journal › Article › peer-review

Harvard

Александров, ИА, Севостьянов, ДГ & Шабаев, ВМ 2025, 'Schwinger particle production: Rapid switch off of the external field versus dynamical assistance', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 111, no. 1, 016010. https://doi.org/10.1103/PhysRevD.111.016010

APA

Александров, И. А., Севостьянов, Д. Г., & Шабаев, В. М. (2025). Schwinger particle production: Rapid switch off of the external field versus dynamical assistance. Physical Review D - Particles, Fields, Gravitation and Cosmology, 111(1), [016010]. https://doi.org/10.1103/PhysRevD.111.016010

Vancouver

Александров ИА, Севостьянов ДГ, Шабаев ВМ. Schwinger particle production: Rapid switch off of the external field versus dynamical assistance. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2025 Jan 10;111(1). 016010. https://doi.org/10.1103/PhysRevD.111.016010

Author

Александров, Иван Александрович ; Севостьянов, Денис Геннадьевич ; Шабаев, Владимир Моисеевич. / Schwinger particle production: Rapid switch off of the external field versus dynamical assistance. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2025 ; Vol. 111, No. 1.

BibTeX

@article{ca8203c8bd66400895410fb100063782,
title = "Schwinger particle production: Rapid switch off of the external field versus dynamical assistance",
abstract = "We consider the process of electron-positron pair production in the presence of strong electric backgrounds being rapidly switched on and off and examine the total particle yield. For sufficiently sharp field profiles, the particle number can be substantially enhanced. It is demonstrated that this enhancement is quite similar to the phenomenon of dynamical assistance by a weak high-frequency field superimposed on a strong background. Both these mechanisms are analyzed by means of exact numerical computations, worldline instanton approach, and the locally constant field approximation. We identify the timescale of the switching profile leading to the pair-production enhancement and argue that the particle yield is highly unlikely to be increased by shaping the switch on and off of realistic laser pulses. On the other hand, we confirm that it is feasible to observe the dynamically assisted Schwinger effect by adding a rapidly oscillating field to a strong electric background.",
author = "Александров, {Иван Александрович} and Севостьянов, {Денис Геннадьевич} and Шабаев, {Владимир Моисеевич}",
year = "2025",
month = jan,
day = "10",
doi = "10.1103/PhysRevD.111.016010",
language = "English",
volume = "111",
journal = "Physical review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Schwinger particle production: Rapid switch off of the external field versus dynamical assistance

AU - Александров, Иван Александрович

AU - Севостьянов, Денис Геннадьевич

AU - Шабаев, Владимир Моисеевич

PY - 2025/1/10

Y1 - 2025/1/10

N2 - We consider the process of electron-positron pair production in the presence of strong electric backgrounds being rapidly switched on and off and examine the total particle yield. For sufficiently sharp field profiles, the particle number can be substantially enhanced. It is demonstrated that this enhancement is quite similar to the phenomenon of dynamical assistance by a weak high-frequency field superimposed on a strong background. Both these mechanisms are analyzed by means of exact numerical computations, worldline instanton approach, and the locally constant field approximation. We identify the timescale of the switching profile leading to the pair-production enhancement and argue that the particle yield is highly unlikely to be increased by shaping the switch on and off of realistic laser pulses. On the other hand, we confirm that it is feasible to observe the dynamically assisted Schwinger effect by adding a rapidly oscillating field to a strong electric background.

AB - We consider the process of electron-positron pair production in the presence of strong electric backgrounds being rapidly switched on and off and examine the total particle yield. For sufficiently sharp field profiles, the particle number can be substantially enhanced. It is demonstrated that this enhancement is quite similar to the phenomenon of dynamical assistance by a weak high-frequency field superimposed on a strong background. Both these mechanisms are analyzed by means of exact numerical computations, worldline instanton approach, and the locally constant field approximation. We identify the timescale of the switching profile leading to the pair-production enhancement and argue that the particle yield is highly unlikely to be increased by shaping the switch on and off of realistic laser pulses. On the other hand, we confirm that it is feasible to observe the dynamically assisted Schwinger effect by adding a rapidly oscillating field to a strong electric background.

UR - https://www.mendeley.com/catalogue/c6fe34f7-16d4-3d2c-abdc-7d26ae609651/

U2 - 10.1103/PhysRevD.111.016010

DO - 10.1103/PhysRevD.111.016010

M3 - Article

VL - 111

JO - Physical review D

JF - Physical review D

SN - 2470-0010

IS - 1

M1 - 016010

ER -

ID: 131405063