Quadrature squeezed photons from a two-level system

Nature
Carsten H H SchulteMete Atatüre

Abstract

Resonance fluorescence arises from the interaction of an optical field with a two-level system, and has played a fundamental role in the development of quantum optics and its applications. Despite its conceptual simplicity, it entails a wide range of intriguing phenomena, such as the Mollow-triplet emission spectrum, photon antibunching and coherent photon emission. One fundamental aspect of resonance fluorescence--squeezing in the form of reduced quantum fluctuations in the single photon stream from an atom in free space--was predicted more than 30 years ago. However, the requirement to operate in the weak excitation regime, together with the combination of modest oscillator strength of atoms and low collection efficiencies, has continued to necessitate stringent experimental conditions for the observation of squeezing with atoms. Attempts to circumvent these issues had to sacrifice antibunching, owing to either stimulated forward scattering from atomic ensembles or multi-photon transitions inside optical cavities. Here, we use an artificial atom with a large optical dipole enabling 100-fold improvement of the photon detection rate over the natural atom counterpart and reach the necessary conditions for the observation of quad...Continue Reading

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Citations

Jan 5, 2017·Scientific Reports·László Ruppert, Radim Filip
Apr 4, 2017·Nature Communications·T HeindelS Reitzenstein
Aug 31, 2016·Nature Communications·H SnijdersW Löffler
Jul 12, 2019·Nature Communications·Jake Iles-SmithDara P S McCutcheon
May 8, 2016·Physical Review Letters·B Kühn, W Vogel
Apr 30, 2017·Physical Review Letters·B KühnB Hage
Jan 13, 2019·Physical Review Letters·Fernando QuijandríaGöran Johansson
Nov 9, 2019·Physical Review Letters·Z X KoongB D Gerardot
Jul 30, 2016·Physical Review Letters·L F BuchmannD M Stamper-Kurn
Oct 24, 2020·Physical Review Letters·Hui WangJian-Wei Pan
Jan 16, 2021·The Journal of Chemical Physics·Kobra N Avanaki, George C Schatz
Mar 8, 2019·The Journal of Physical Chemistry Letters·Hsing-Ta ChenJoseph E Subotnik
Oct 26, 2018··Agnikumar G. VedeshwarParvendra Kumar

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