255 citations · 354 across the 2 of their papers we have counts for
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Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction
Hiroki Takahashi, Kentaro Wakui, Shigenari Suzuki +4
We propose and demonstrate a novel method to generate a large-amplitude coherent-state superposition (CSS) via ancilla-assisted photon-subtraction. The ancillary mode induces quant…
7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4
Shigenari Suzuki, Hidehiro Yonezawa, Fumihiko Kannari +2
We observed -7.2 dB quadrature squeezing at 860 nm by using a sub-threshold continuous-wave pumped optical parametric oscillator with a periodically-poled KTiOPO4 crystal as a nonl…
Practical purification scheme for decohered coherent-state superpositions via partial homodyne detection
Shigenari Suzuki, Masahiro Takeoka, Masahide Sasaki +2
We present a simple protocol to purify a coherent-state superposition that has undergone a linear lossy channel. The scheme constitutes only a single beam splitter and a homodyne d…