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

• URL: http://arxiv.org/abs/2107.08742v1
• Date: Mon, 19 Jul 2021 10:29:25 GMT
• Title: Synchronization and phase shaping of single photons with high-efficiency quantum memory
• Authors: Keyu Su, Yunfei Wang, Shanchao Zhang, Zhuoping Kong, Yi Zhong, Jianfeng Li, Hui Yan, and Shi-Liang Zhu
• Abstract summary: We develop a 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. The developed phase modulator may push forward the practical quantum information applications.
• Score: 4.0553651947971865
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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