Andrew Wee

@article{ISI:001376827800011,
title = {Polarization entanglement enabled by orthogonally stacked van der Waals NbOCl_{2} crystals},
author = {Qiangbing Guo and Yun-Kun Wu and Di Zhang and Qiuhong Zhang and Guang-Can Guo and Andrea Alu and Xi-Feng Ren and Cheng-Wei Qiu},
doi = {10.1038/s41467-024-54876-w},
times_cited = {4},
year = {2024},
date = {2024-12-02},
journal = {NATURE COMMUNICATIONS},
volume = {15},
number = {1},
publisher = {NATURE PORTFOLIO},
address = {HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY},
abstract = {Polarization entanglement holds significant importance for photonic quantum technologies. Recently emerging subwavelength nonlinear quantum light sources, e.g., GaP and LiNbO3 thin films, benefiting from the relaxed phase-matching constraints and volume confinement, have shown intriguing properties, such as high-dimensional hyperentanglement and robust entanglement anti-degradation. Van der Waals (vdW) NbOCl2 crystal, with strong optical nonlinearities, has emerged as a potential candidate for ultrathin quantum light sources. However, polarization entanglement is inaccessible in the NbOCl2 crystal due to its unfavorable nonlinear susceptibility tensor. Here, by leveraging the twist-stacking degree of freedom inherently in vdW systems, we showcase the preparation of polarization entanglement and quantum Bell states.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}