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arXiv · 2107.08742

Synchronization and phase shaping of single photons with high-efficiency quantum memory

Keyu Su·Yunfei Wang·Shanchao Zhang·Zhuoping Kong·Yi Zhong·Jianfeng Li·Hui Yan·Shi-Liang Zhu
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Abstract

Time synchronization and phase shaping of single photons both play fundamental roles in quantum information applications that rely on multi-photon quantum interference. Phase shaping typically requires separate modulators with extra insertion losses. Here, we develop a all-optical built-in phase modulator for single photons using a quantum memory. The fast phase modulation of a single photon in both step and linear manner are verified by observing the efficient quantum-memory-assisted Hong-Ou-Mandel interference between two single photons, where the anti-coalescence effect of bosonic photon pairs is demonstrated. The developed phase modulator may push forward the practical quantum information applications.

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Keyu Su, Yunfei Wang, Shanchao Zhang, Zhuoping Kong, Yi Zhong, Jianfeng Li, Hui Yan, Shi-Liang Zhu. 2021-07-19. Synchronization and phase shaping of single photons with high-efficiency quantum memory. https://doi.org/10.1088/0256-307x%2F38%2F9%2F094202

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