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arXiv · 1606.05637

Non-classical photon correlation in a two-dimensional photonic lattice

Jun Gao·Lu-Feng Qiao·Xiao-Feng Lin·Zhi-Qiang Jiao·Zhen Feng·Zheng Zhou·Zhen-Wei Gao·Xiao-Yun Xu·Yuan Chen·Hao Tang·Xian-Min Jin
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Abstract

Quantum interference and quantum correlation, as two main features of quantum optics, play an essential role in quantum information applications, such as multi-particle quantum walk and boson sampling. While many experimental demonstrations have been done in one-dimensional waveguide arrays, it remains unexplored in higher dimensions due to tight requirement of manipulating and detecting photons in large-scale. Here, we experimentally observe non-classical correlation of two identical photons in a fully coupled two-dimensional structure, i.e. photonic lattice manufactured by three-dimensional femtosecond laser writing. Photon interference consists of 36 Hong-Ou-Mandel interference and 9 bunching. The overlap between measured and simulated distribution is up to $0.890\pm0.001$. Clear photon correlation is observed in the two-dimensional photonic lattice. Combining with controllably engineered disorder, our results open new perspectives towards large-scale implementation of quantum simulation on integrated photonic chips.

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Jun Gao, Lu-Feng Qiao, Xiao-Feng Lin, Zhi-Qiang Jiao, Zhen Feng, Zheng Zhou, Zhen-Wei Gao, Xiao-Yun Xu, Yuan Chen, Hao Tang, Xian-Min Jin. 2016-06-17. Non-classical photon correlation in a two-dimensional photonic lattice. https://doi.org/10.1364/oe.24.012607

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