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arXiv · 1004.2727

Generation of Optical Coherent State Superpositions by Number-Resolved Photon Subtraction from Squeezed Vacuum

Thomas Gerrits·Scott Glancy·Tracy S. Clement·Brice Calkins·Adriana E. Lita·Aaron J. Miller·Alan L. Migdall·Sae Woo Nam·Richard P. Mirin·Emanuel Knill
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Abstract

We have created heralded coherent state superpositions (CSS), by subtracting up to three photons from a pulse of squeezed vacuum light. To produce such CSSs at a sufficient rate, we used our high-efficiency photon-number-resolving transition edge sensor to detect the subtracted photons. This is the first experiment enabled by and utilizing the full photon-number-resolving capabilities of this detector. The CSS produced by three-photon subtraction had a mean photon number of 2.75 -0.24/+0.06 and a fidelity of 0.59 -0.14/+0.04 with an ideal CSS. This confirms that subtracting more photons results in higher-amplitude CSSs.

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Thomas Gerrits, Scott Glancy, Tracy S. Clement, Brice Calkins, Adriana E. Lita, Aaron J. Miller, Alan L. Migdall, Sae Woo Nam, Richard P. Mirin, Emanuel Knill. 2011-02-01. Generation of Optical Coherent State Superpositions by Number-Resolved Photon Subtraction from Squeezed Vacuum. https://doi.org/10.1103/physreva.82.031802

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