Generation of optical Schrödinger cat states by number-resolved squeezed photon subtraction
Thomas Gerrits, Scott C. Glancy, Tracy S. Clement, Brice R. Calkins, Adriana E. Lita, Aaron J. Miller, Alan L. Migdall, Sae Woo Nam, Richard P. Mirin, Emanuel H. Knill
We have generated and measured an approximation of an optical Schrödinger cat state by photon subtraction from a squeezed state. Using single-photon avalanche photodiode detectors and photon-number-resolving transition edge sensors, we were able to extract Wigner distributions for one or two photons subtracted from the squeezed state, resulting in both an odd and even cat state. The one-photon-subtracted Wigner distribution shows measured negative features (without any correction), indicating quantum character. The Wigner distribution of the two-photon-subtracted state is negative after correcting for homodyne losses. A full statistical analysis is under way to quantify the magnitude and fidelity of the cat states generated.
2009 Conference of Lasers and Electro-optics (CLEO)and International Quantum Electronics Conference (IQEC)
, Glancy, S.
, Clement, T.
, Calkins, B.
, Lita, A.
, Miller, A.
, Migdall, A.
, Nam, S.
, Mirin, R.
and Knill, E.
Generation of optical Schrödinger cat states by number-resolved squeezed photon subtraction, 2009 Conference of Lasers and Electro-optics (CLEO)and International Quantum Electronics Conference (IQEC), Baltimore, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901159
(Accessed December 7, 2023)