Temporal Wheeler’s delayed-choice experiment based on cold atomic quantum memory
| Autor: | En-Ze Li, Dong-Sheng Ding, Yi-Chen Yu, Ying-Hao Ye, Lei Zeng, Li Dachuang, Bao-Sen Shi, Guang-Can Guo, Kan Zhang, Ming-Xin Dong, Wei-Hang Zhang |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Photon
Computer Networks and Communications 02 engineering and technology 01 natural sciences lcsh:QA75.5-76.95 symbols.namesake Superposition principle Quantum mechanics 0103 physical sciences Computer Science (miscellaneous) Hardware random number generator 010306 general physics Physics Wheeler's delayed choice experiment business.industry Statistical and Nonlinear Physics 021001 nanoscience & nanotechnology lcsh:QC1-999 Bohr model Massless particle Computational Theory and Mathematics symbols lcsh:Electronic computers. Computer science Photonics 0210 nano-technology business Excitation lcsh:Physics |
| Zdroj: | npj Quantum Information, Vol 6, Iss 1, Pp 1-7 (2020) |
| ISSN: | 2056-6387 |
| Popis: | Nowadays the most intriguing features of wave-particle complementarity of single-photons are exemplified by the famous Wheeler’s delayed-choice experiment with linear optics, nuclear magnetic resonance, and integrated photonic device systems in the optical platform. Until now, the delayed-choice experiments are demonstrated by either massless photons or massive particles, such as atoms, however, there is no report demonstrating Wheeler’s ideas in a hybrid system which consists of photons and atoms simultaneously. Here, we demonstrate a Wheeler’s delayed-choice experiment in an interface of light and atomic memory, in which the cold atomic memory makes the heralded single-photon divided into a superposition of atomic collective excitation and leaked pulse, thus acting as memory-based beam-splitters. We observe the intermediate states between particle and wave behavior by changing the relative proportion of the quantum random number generator, the second memory efficiency, and the relative storage time of two memories. The reported results confirm Bohr’s view that it makes no sense to illustrate the wave-like or particle-like behavior of light and matter before the measurement happens, and are helpful for improving our comprehension of the complementarity principle under the interface of light-atom interaction. |
| Databáze: | OpenAIRE |
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