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arXiv · 2208.13136

Detecting the relative phase between different frequency components of a photon using a three-level $\Lambda$ atom coupled to a waveguide

Janet Zhong·Rituraj·Fatih Dinc·Shanhui Fan
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Abstract

We study the scattering of a single photon propagating along a waveguide in an arbitrary superposition state two frequencies with a single three-level $\Lambda$ atom in a superposition of two non-degenerate ground states where the atom is coupled to a waveguide. We find that the scattering depends on both the relative phase between the photon frequencies and the relative phase between the atomic ground states. Our results show that a three-level $\Lambda$ atom coupled to a waveguide can be used as photon phase filter that could detect the relative phase between the two frequencies of the photon superposition state.

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Janet Zhong, Rituraj, Fatih Dinc, Shanhui Fan. 2022-08-28. Detecting the relative phase between different frequency components of a photon using a three-level $\Lambda$ atom coupled to a waveguide. https://doi.org/10.1103/physreva.107.l051702

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