Kim, Yosep Im, Dong-Gil Kim, Yong-Su Cho, Young-Wook Han, Sang-Wook Moon, Sung Kim, Yoon-Ho Lee, Sang-Yun 2024-01-19T10:08:51Z 2024-01-19T10:08:51Z 2022-02-28 2019-05 2160-9020 https://pubs.kist.re.kr/handle/201004/114094 Observing counterintuitive quantum phenomena have provided physical perspectives on quantum mechanics as well as important evidence of its validity. One of such phenomena, namely the quantum Cheshire cat effect, illustrates the situation that the physical property is disembodied from its physical carrier. Here, we experimentally demonstrate the quantum Cheshire cat effect with a nondestructive weak measuring device. A pre-and post-selected photonic quantum system is subject to a weak nondestructive measuring device to probe where the photon and its polarization property can be found. Intriguingly, a quantum pointer after the weak quantum measurement indicates that the polarization can be found at the path the photon did not take. (C) 2019 The Author(s) English IEEE Observing the quantum Cheshire cat with a nondestructive weak measuring device Conference 1 Conference on Lasers and Electro-Optics (CLEO) Conference on Lasers and Electro-Optics (CLEO) US San Jose, CA 2019-05-05 2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) 000482226300230