This paper experimentally demonstrates the separation of wave and particle attributes of a single photon using the quantum Cheshire cat concept and weak measurement. By employing an improved Mach-Zehnder interferometer (MZI) with specific pre- and post-selection states, the authors successfully extract weak values of different operators, confirming the spatial separation of wave and particle attributes. The results provide new insights into wave-particle duality and offer a new approach to investigating fundamental quantum mechanics.
Publisher
Light: Science & Applications
Published On
Jan 31, 2023
Authors
Li
Tags
quantum mechanics
wave-particle duality
weak measurement
Mach-Zehnder interferometer
quantum Cheshire cat
single photon
spatial separation
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