Instanton solution for Schwinger production of 't Hooft-Polyakov monopoles
File(s)
Published version
Author(s)
Ho, David L-J
Rajantie, Arttu
Type
Journal Article
Abstract
We present the results of an explicit numerical computation of a novel instanton in Georgi-Glashow SU(2) theory. The instanton is physically relevant as a mediator of Schwinger production of ’t Hooft–Polyakov magnetic monopoles from strong magnetic fields. In weak fields, the pair production rate has previously been computed using the worldline approximation, which breaks down in strong fields due to the effects of finite monopole size. Using lattice field theory we have overcome this limit, including finite monopole size effects to all orders. We demonstrate that a full consideration of the internal monopole structure results in an enhancement to the pair production rate, and confirm earlier results that monopole production becomes classical at the Ambjørn-Olesen critical field strength.
Date Issued
2021-06-29
Date Acceptance
2021-05-17
Citation
Physical Review D: Particles, Fields, Gravitation and Cosmology, 2021, 103 (11), pp.1-9
ISSN
1550-2368
Publisher
American Physical Society
Start Page
1
End Page
9
Journal / Book Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Volume
103
Issue
11
Copyright Statement
© 2022 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
License URL
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000669041900004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/P000762/1
ST/T000791/1
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
QUANTUM-FIELD THEORY
MAGNETIC MONOPOLES
PAIR PRODUCTION
WEAK
Publication Status
Published
Article Number
ARTN 115033
Date Publish Online
2021-06-29