Synchronization of active atomic clocks via quantum and classical channels

verfasst von: Alexander Roth, Klemens Hammerer
Abstract: Superradiant lasers based on atomic ensembles exhibiting ultranarrow optical transitions can emit light of unprecedented spectral purity and may serve as active atomic clocks. We consider two frequency-detuned active atomic clocks, which are coupled in a cascaded setup, i.e., as master and slave lasers, and study the synchronization of the slave to the master clock. In a setup where both atomic ensembles are coupled to a common cavity mode, such synchronization phenomena have been predicted by Xu et al. [M. Xu, D. A. Tieri, E. C. Fine, J. K. Thompson, and M. J. Holland, Phys. Rev. Lett. 113, 154101 (2014).PRLTAO0031-900710.1103/PhysRevLett.113.154101] and experimentally observed by Weiner et al. (J. M. Weiner, arXiv:1503.06464). Here we demonstrate that synchronization still occurs in cascaded setups but exhibits distinctly different phase diagrams. We study the characteristics of synchronization in comparison to the case of coupling through a common cavity. We also consider synchronization through a classical channel where light of the master laser is measured phase sensitively and the slave laser is injection locked by feedback and compare to the results achievable by coupling through quantum channels.
Organisationseinheit(en): Institut für Theoretische Physik
Institut für Gravitationsphysik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Typ: Artikel
Journal: Physical Review A
Band: 94
ISSN: 2469-9926
Publikationsdatum: 21.10.2016
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Atom- und Molekularphysik sowie Optik
Elektronische Version(en): https://doi.org/10.1103/PhysRevA.94.043841 (Zugang: Unbekannt)

BibTeX

@article{2fee49e7e6c149088158d8adc3c2044c,
title = "Synchronization of active atomic clocks via quantum and classical channels",
abstract = "Superradiant lasers based on atomic ensembles exhibiting ultranarrow optical transitions can emit light of unprecedented spectral purity and may serve as active atomic clocks. We consider two frequency-detuned active atomic clocks, which are coupled in a cascaded setup, i.e., as master and slave lasers, and study the synchronization of the slave to the master clock. In a setup where both atomic ensembles are coupled to a common cavity mode, such synchronization phenomena have been predicted by Xu et al. [M. Xu, D. A. Tieri, E. C. Fine, J. K. Thompson, and M. J. Holland, Phys. Rev. Lett. 113, 154101 (2014).PRLTAO0031-900710.1103/PhysRevLett.113.154101] and experimentally observed by Weiner et al. (J. M. Weiner, arXiv:1503.06464). Here we demonstrate that synchronization still occurs in cascaded setups but exhibits distinctly different phase diagrams. We study the characteristics of synchronization in comparison to the case of coupling through a common cavity. We also consider synchronization through a classical channel where light of the master laser is measured phase sensitively and the slave laser is injection locked by feedback and compare to the results achievable by coupling through quantum channels.",
author = "Alexander Roth and Klemens Hammerer",
year = "2016",
month = oct,
day = "21",
doi = "10.1103/PhysRevA.94.043841",
language = "English",
volume = "94",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "4",
}