Published February 22, 2024 | Version v1
Journal article Metadata-only

Nonperturbative method for particle detectors with continuous interactions

Creators

  • 1. Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada and Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L 2Y5, Canada

Description

We show that detector switching profiles consisting of trains of delta couplings are a useful computational tool to efficiently approximate results involving continuous switching functions, both in setups involving a single detector and multiple ones. The rapid convergence to the continuous results at all orders in perturbation theory for sufficiently regular switchings means that this tool can be used to obtain nonperturbative results for general particle detector phenomena with continuous switching functions.

Additional details

Identifiers

DOI
10.1103/PhysRevD.109.045014;
arXiv
arXiv:2311.02174;
Crossref Funder ID
10.13039/100010434; 10.13039/501100000038; 10.13039/501100021745; 10.13039/501100000023; 10.13039/100011332; 10.13039/501100021784;

Publishing Information

Journal Title
Physical Review D
Journal Volume
109
Journal Issue
4
Journal Page Range
22 pgs.
ISSN
1089-4918

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
APPROXIMATIONS; CARTESIAN COORDINATES; CONVERGENCE; COUPLING; COUPLING CONSTANTS; DELTA FUNCTION; DYNAMICAL SYSTEMS; FUNCTIONS; INTEGRAL TRANSFORMATIONS; PARTICLE INTERACTIONS; PERTURBATION THEORY; POWER SERIES; SERIES EXPANSION; SWITCHES
Descriptors DEC
CALCULATION METHODS; COORDINATES; ELECTRICAL EQUIPMENT; EQUIPMENT; FUNCTIONS; INTERACTIONS; SERIES EXPANSION; TRANSFORMATIONS

Optional Information

Copyright
© 2024 American Physical Society
Notes
Contact Email: jpologomez@uwaterloo.ca; Contact Email: emartinmartinez@uwaterloo.ca; Record automatically processed
Funding organization
'la Caixa' Foundation; Natural Sciences and Engineering Research Council of Canada; Institut Périmètre de physique théorique; Government of Canada; Innovation, Science and Economic Development Canada; Ministry of Colleges and Universities