https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.234301
相关报道
http://www.digitaljournal.com/tech-and-science/science/3d-printed-wormhole-for-sound-waves/article/538535
https://arstechnica.com/science/2018/12/researchers-3d-print-a-wormhole-for-sound-waves/
https://nazology.net/archives/26332
https://mp.weixin.qq.com/s/OFfbY34lNuj91uI4BoMNLA
