Photon-recoil spectroscopy: Systematic shifts and nonclassical enhancements

verfasst von
Marius Schulte, Niels Lörch, Piet Oliver Schmidt, Klemens Johannes Hammerer
Abstract

In photon-recoil spectroscopy, signals are extracted from recoils imparted by the spectroscopy light on the motion of trapped ions as demonstrated by Hempel et al. [C. Hempel, Nat. Photon. 7, 630 (2013)1749-488510.1038/nphoton.2013.172] and Wan et al. [Y. Wan, Nat. Commun. 5, 3096 (2014)2041-172310.1038/ncomms4096]. The method exploits the exquisite efficiency in the detection of phonons achievable in ion crystals and is thus particularly suitable for species with broad noncycling transitions where detection of fluorescence photons is impractical. Here we develop a theoretical model for the description of photon-recoil spectroscopy based on a Fokker-Planck equation for the Wigner function of the phonon mode. Our model correctly explains systematic shifts due to Doppler heating and cooling as observed in the experiment. Furthermore, we investigate quantum metrological schemes for enhancing the spectroscopic sensitivity based on the preparation and detection of nonclassical states of the phonon mode.

Organisationseinheit(en)
Institut für Theoretische Physik
Institut für Quantenoptik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en)
Universität Basel
Physikalisch-Technische Bundesanstalt (PTB)
Typ
Artikel
Journal
Physical Review A
Band
98
ISSN
2469-9926
Publikationsdatum
12.2018
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Atom- und Molekularphysik sowie Optik
Elektronische Version(en)
https://doi.org/10.48550/arXiv.1807.08309 (Zugang: Offen)
https://doi.org/10.1103/PhysRevA.98.063808 (Zugang: Geschlossen)