Continuous-variable quantum optical experiments in the time domain using squeezed states and heralded non-Gaussian states

Jun-ichi Yoshikawa; Yosuke Hashimoto; Hisashi Ogawa; Shota Yokoyama; Yu Shiozawa; Takahiro Serikawa; Akira Furusawa

doi:10.1117/12.2252206

20 February 2017 Continuous-variable quantum optical experiments in the time domain using squeezed states and heralded non-Gaussian states

Jun-ichi Yoshikawa, Yosuke Hashimoto, Hisashi Ogawa, Shota Yokoyama, Yu Shiozawa, Takahiro Serikawa, Akira Furusawa

Author Affiliations +

Proceedings Volume 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X; 1011804 (2017) https://doi.org/10.1117/12.2252206
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Continuous-variable quantum information processing with optical field quadrature amplitudes is advantageous in deterministic creation of Gaussian entanglement. On the other hand, non-Gaussian state preparation and operation are currently limited, but heralding schemes potentially overcome this difficulty. Here, we summarize our recent progress in continuous-variable quantum optical experiments. In particular, we have recently succeeded in creation of ultra-large-scale cluster-type entanglement with full inseparability, multiplexed in the time domain; storage and on-demand release of heralded single-photon states, which is applied to synchronization of two heralded single-photon states; real-time quadrature measurements regarding non-Gaussian single-photon states with exponentially rising wavepackets; squeezing with relatively broader bandwidth by using triangle optical parametric oscillator.

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Jun-ichi Yoshikawa, Yosuke Hashimoto, Hisashi Ogawa, Shota Yokoyama, Yu Shiozawa, Takahiro Serikawa, and Akira Furusawa "Continuous-variable quantum optical experiments in the time domain using squeezed states and heralded non-Gaussian states", Proc. SPIE 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X, 1011804 (20 February 2017); https://doi.org/10.1117/12.2252206

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KEYWORDS

Homodyne detection

Optical parametric oscillators

Single photon

Quantum optics

Multiplexing

Quantum communications

Avalanche photodetectors

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