Non-unitary transformation on quantum interference in a chip

Jiani Lei; Yilin Yang; Hao Li; Zixuan Liao; Bo Tang; Yuanhua Li; Yuanlin Zheng; Xianfeng Chen

doi:10.3788/COL202523.052701

Chinese Optics Letters, Volume. 23, Issue 5, 052701(2025)

Non-unitary transformation on quantum interference in a chip

Jiani Lei¹, Yilin Yang¹, Hao Li¹, Zixuan Liao¹, Bo Tang¹, Yuanhua Li^1,2、*, Yuanlin Zheng^1,3,4, and Xianfeng Chen^1,3,4,5、**

Author Affiliations

¹State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China

²Department of Physics, Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China

³Shanghai Research Center for Quantum Sciences, Shanghai 201315, China

⁴Hefei National Laboratory, Hefei 230088, China

⁵Collaborative Innovation Center of Light Manipulation and Applications, Shandong Normal University, Jinan 250358, China

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Figures & Tables(3)

Fig. 1. Conceptual diagram of the circuit. α is the phase shift of π/2.

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Fig. 2. (a) Output probability P_1,2 for state |1₁ 1₂⟩ as a function of η and ϕ. (b) Output probability P_1,3 for state |1₁ 1₂⟩. (c) Impact of the balance property on P_1,2 of photons (θ = 0). (d) Impact of the balance property on P_1,3 of photons (θ = 0.8).

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Fig. 3. (a) Output probability P_1,2 for state |1₁ 1₂⟩ as a function of η and τ. (b) Output probability P_1,3 for state |1₁ 1₂⟩ a function of η and τ.

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Jiani Lei, Yilin Yang, Hao Li, Zixuan Liao, Bo Tang, Yuanhua Li, Yuanlin Zheng, Xianfeng Chen, "Non-unitary transformation on quantum interference in a chip," Chin. Opt. Lett. 23, 052701 (2025)

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