https://doi.org/10.1140/epjd/s10053-024-00839-1
Regular Article - Optical Phenomena and Photonics
Improved selection of dark states in the presence of drive-induced dissipation
Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, West Bengal, India
Received:
24
January
2024
Accepted:
26
March
2024
Published online:
13
April
2024
We revisit the coherent population trapping (CPT) of a three-state system in the presence of environmental fluctuations and strong electromagnetic driving fields. To this end, we use a fluctuation-regulated quantum master equation that considers the drive-induced dissipation (DID) in the system. The DID originates from the combined effect of a driving field and environmental fluctuations. We report that increasing DID shows a narrowing of CPT linewidth and, hence, improved selection of the dark states. As such, the DID enhances the sensitivity of CPT at a driving strength much larger than the system’s relaxation rates. We also discuss the practical implementation of the scheme along with possible applications.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
