Contextual particle propagation in a three-path interferometer
Holger F. Hofmann
TL;DR
This paper explores the paradoxical nature of single-photon interference in a three-path interferometer, highlighting the role of quantum contextuality and dynamics in quantum information processing.
Contribution
It introduces a detailed analysis of quantum contextuality in a three-path interferometer, emphasizing the importance of dynamics in understanding quantum coherence.
Findings
Demonstrates the impossibility of tracing a single photon through five stages
Reveals paradoxical aspects of single-photon interference
Highlights the role of dynamics in quantum information
Abstract
Quantum information is based on the apparent contradictions between classical logic and quantum coherence described by Kochen-Specker contextuality. Surprisingly, this contradiction can be demonstrated in a comparatively simple three-path interferometer, where it is impossible to trace the path of a single photon through five consecutive stages of the interferometer. Here, I discuss the paradoxical aspects of single photon interferences revealed by the three-path interferometer and point out the essential role of dynamics in quantum information.
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Taxonomy
TopicsQuantum Mechanics and Applications · Quantum Information and Cryptography · Mechanical and Optical Resonators