Resonance Fluorescence from an Artificial Atom in Squeezed Vacuum
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PhysRevX.6.031004.pdf
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1.39 MB
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Author(s)
Toyli, D. M.
Eddins, A. W.
Boutin, S.
Puri, S.
Blais, A.
Siddiqi, I.
Hover, David J.
Bolkhovsky, Vladimir
Oliver, William D
Date Issued
July 2016
Journal
Physical Review X
Publisher
American Physical Society
Citation
Toyli, D. M. et al. “Resonance Fluorescence from an Artificial Atom in Squeezed Vacuum.” Physical Review X 6.3 (2016): n. pag. © 2016 American Physical Society
Version
Final published version
Abstract
We present an experimental realization of resonance fluorescence in squeezed vacuum. We strongly couple microwave-frequency squeezed light to a superconducting artificial atom and detect the resulting fluorescence with high resolution enabled by a broadband traveling-wave parametric amplifier. We investigate the fluorescence spectra in the weak and strong driving regimes, observing up to 3.1 dB of reduction of the fluorescence linewidth below the ordinary vacuum level and a dramatic dependence of the Mollow triplet spectrum on the relative phase of the driving and squeezed vacuum fields. Our results are in excellent agreement with predictions for spectra produced by a two-level atom in squeezed vacuum [Phys. Rev. Lett. 58, 2539 (1987)], demonstrating that resonance fluorescence offers a resource-efficient means to characterize squeezing in cryogenic environments.
MIT Department
Lincoln Laboratory
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1103/PhysRevX.6.031004
