Photon number conservation in time dependent systems
File(s)
Published version
Author(s)
Pendry, JB
Type
Journal Article
Abstract
Time dependent systems in general do not conserve photons nor do they conserve energy. However when parity-time symmetry holds Maxwell’s equations can sometimes both conserve photon number and energy. Here we show that photon conservation is the more widely applicable law which can hold in circumstances where energy conservation is violated shedding further light on an amplification mechanism identified in previous papers as a process of conserved photons climbing a frequency ladder.
Date Issued
2023-01-02
Date Acceptance
2022-11-10
Citation
Optics Express, 2023, 31 (1), pp.452-458
ISSN
1094-4087
Publisher
Optica Publishing Group
Start Page
452
End Page
458
Journal / Book Title
Optics Express
Volume
31
Issue
1
Copyright Statement
Journal © 2023. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000920797200036&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Optics
Physical Sciences
Science & Technology
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2022-12-21