Boosting generation rate of squeezed single-photon states by generalized photon subtraction
- URL: http://arxiv.org/abs/2404.19304v1
- Date: Tue, 30 Apr 2024 07:09:47 GMT
- Title: Boosting generation rate of squeezed single-photon states by generalized photon subtraction
- Authors: Hiroko Tomoda, Akihiro Machinaga, Kan Takase, Jun Harada, Takahiro Kashiwazaki, Takeshi Umeki, Shigehito Miki, Fumihiro China, Masahiro Yabuno, Hirotaka Terai, Daichi Okuno, Shuntaro Takeda,
- Abstract summary: Generalized photon subtraction (GPS) is a simple extension of photon subtraction (PS)
We experimentally demonstrate the generation rate improvement for 2 dB- and 4 dB-squeezed single-photon states compared to PS, by more than one order of magnitude particularly for the case of 2 dB.
Our results will accelerate the application of squeezed single-photon states to more advanced quantum information protocols.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In optical quantum information processing with continuous variables, optical non-Gaussian quantum states are essential for universal and fault-tolerant quantum computation. Experimentally, their most typical generation method is photon subtraction (PS) where single-photon detection by an on/off detector probabilistically heralds the generation of squeezed single-photon states. In PS, however, trying to avoid unwanted multi-photon detection inevitably limits the generation rate, hindering the application of squeezed single-photon states. Here, we theoretically show that generalized photon subtraction (GPS), a simple extension of PS, can improve the generation rate while maintaining the quality of the generated states. Furthermore, we experimentally demonstrate the generation rate improvement for 2 dB- and 4 dB-squeezed single-photon states compared to PS, by more than one order of magnitude particularly for the case of 2 dB. Our results will accelerate the application of squeezed single-photon states to more advanced quantum information protocols.
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