Abstract
We present the generation of approximated coherent state superpositions-referred to as Schrodinger cat states-by the process of subtracting single photons from picosecond pulsed squeezed states of light. The squeezed vacuum states are produced by spontaneous parametric down-conversion (SPDC) in a periodically poled KTiOPO4 crystal while the single photons are probabilistically subtracted using a beamsplitter and a single photon detector. The resulting states are fully characterized with time-resolved homodyne quantum state tomography. Varying the pump power of the SPDC, we generated different states which exhibit non-Gaussian behavior. (C) 2014 Optical Society of America
Original language | English |
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Journal | Optical Society of America. Journal B: Optical Physics |
Volume | 31 |
Issue number | 5 |
Pages (from-to) | 1192-1201 |
Number of pages | 10 |
ISSN | 0740-3224 |
DOIs | |
Publication status | Published - 2014 |