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High-dimensional entanglement generation based on a Pancharatnam–Berry phase metasurface 被引量:4
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作者 ZHI-XIANG LI DONG ZHU +14 位作者 PEI-CHENG LIN PENG-CHENG HUO HONG-KUAN XIA ming-ze liu YA-PING RUAN JIANG-SHAN TANG MIAO CAI HAO-DONG WU CHAO-YING MENG HAN ZHANG PENG CHEN TING XU KE-YU XIA LI-JIAN ZHANG YAN-QING LU 《Photonics Research》 SCIE EI CAS CSCD 2022年第12期2702-2707,共6页
High-dimensional entanglement is of great importance in quantum communications and can be realized by encoding information on multiple degrees of freedom(Do Fs)of the photons.Conventionally,the realization of such hig... High-dimensional entanglement is of great importance in quantum communications and can be realized by encoding information on multiple degrees of freedom(Do Fs)of the photons.Conventionally,the realization of such high-dimensional entanglement involves different combinations of bulky optical elements.In this work,we present the use of a single dielectric metasurface to generate high-dimensional entanglement by modulating multi-Do Fs of photons.By sending one of the polarization-entangled photons to interact with the metasurface,we encode path,spin angular momentum,and orbital angular momentum information to the original state.We achieve a four-qubit quantum state in the experiment.To verify it,we experimentally demonstrate the nonlocal correlations between the two photons by recording the correlated images,and we also perform a quantum state tomography measurement.This scheme can be applied to on-chip quantum state manipulation,which is promising in quantum communication with integrated components. 展开更多
关键词 QUANTUM MOMENTUM ANGULAR
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