PhysicsNature Communications
Direct observation of a few-photon phase shift induced by a single quantum emitter in a waveguide
M. J. R. Staunstrup, A. Tiranov, et al.
This groundbreaking research by Mathias J. R. Staunstrup and colleagues unveils an optical phase shift of 0.19 ± 0.03 radians when a weak coherent state interacts with a single quantum dot in a nanophotonic waveguide. With implications for high-efficiency optical switching and quantum machine learning, this work paves the way for future advancements in photonic integrated circuitry.
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