Westerberg, N. , Prain, A., Faccio, D. and Öhberg, P. (2019) Vacuum radiation and frequency-mixing in linear light-matter systems. Journal of Physics Communications, 3(6), 065012. (doi: 10.1088/2399-6528/ab2ab2)
|
Text
213265.pdf - Published Version Available under License Creative Commons Attribution. 758kB |
Abstract
Recent progress in photonics has led to a renewed interest in time-varying media that change on timescales comparable to the optical wave oscillation time. However, these studies typically overlook the role of material dispersion that will necessarily imply a delayed temporal response or, stated alternatively, a memory effect. We investigate the influence of the medium memory on a specific effect, i.e. the excitation of quantum vacuum radiation due to the temporal modulation. We construct a framework which reduces the problem to single-particle quantum mechanics, which we then use to study the quantum vacuum radiation. We find that the delayed temporal response changes the vacuum emission properties drastically: frequencies mix, something typically associated with nonlinear processes, despite the system being completely linear. Indeed, this effect is related to the parametric resonances of the light-matter system, and to the parametric driving of the system by frequencies present locally in the drive but not in its spectrum.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Prain, Dr Angus and Faccio, Professor Daniele and Westerberg, Dr Niclas |
| Authors: | Westerberg, N., Prain, A., Faccio, D., and Öhberg, P. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Journal of Physics Communications |
| Publisher: | IOP Publishing |
| ISSN: | 2399-6528 |
| ISSN (Online): | 2399-6528 |
| Published Online: | 18 June 2019 |
| First Published: | First published in Journal of Physics Communications 3(6): 065012 |
| Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information