2021/02/23 by Qi Guo, Wen-Jie Zhang, Gang Li +3
Computer Science · Physics and Astronomy · #Dimension (graph theory) #Mechanical and Optical Resonators #Open quantum system #Photon #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum nonlocality #Quantum process #Quantum superposition #Superposition principle #quant-ph
paper · pdf · doi:10.1103/physreva.104.022210
published as Phys. Rev. A 104, 022210 (2021) · 17 pages, 5 figures
arxiv created 2021/02/23 · openalex created_date 2021/03/01 · openalex publication_date 2021/08/20 · arxiv updated 2021/08/25 · openalex updated_date 2026/08/05
Wheeler's delayed-choice experiment delays the decision to observe either the wave or particle behavior of a photon until after it has entered the interferometer, and the quantum delayed-choice experiment provides the possibility of observing the wave and particle behaviors with a single experimental setup by introducing quantum control. We here propose a modified quantum delayed-choice experiment without quantum control or entanglement assistance, in which a photon can be prepared in a wave-particle superposition state and the morphing behavior of wave-to-particle transition can be observed easily. It is demonstrated that the presented scheme can allow us to rule out classical hidden-variable models in a device-independent manner via violating dimension witness. We also extend the scheme to the situation of two degrees of freedom, first constructing a hybrid quantum delayed-choice experiment which enables a photon respectively exhibits wave and particle behaviors in different degrees of freedom, and then proposing a scheme to prepare the single-photon wave-particle entanglement. This study is not only meaningful to explore the wave-particle complementarity of photons, but also provides potential for the research of the single-particle nonlocality from the perspective of the wave-particle degree of freedom.