The refractive index of a single three-level atom: quantum state separator
Document Type
Article
Publication Date
10-21-2025
Abstract
In this paper, we study interaction of quantum fields and a single three-level atom placed in the Mach–Zender interferometer. We demonstrate that the phases acquired by quantum fields depend on the number of photons in the quantum states. Notably, the phases differ between single- and two-photon states, enabling the separation of multiphoton states. This finding highlights new applications related to the dispersion of three-level atoms, which are important in advancing quantum information processing and enhancing quantum communication technologies. The results are crucial for long-distance quantum communication and hold potential for developing quantum field-based linear devices such as beam splitters, lenses, and quantum prisms capable of separating different components of quantum fields. The findings can have interesting applications for manipulating and assembling of multiphoton entanglement states.
Source Publication
The European Physical Journal Special Topics (ISSN 1951-6355 | eISSN 1951-6401)
Recommended Citation
Emerick, J., Harborth, T., Patnaik, A.K. et al. The refractive index of a single three-level atom: quantum state separator. Eur. Phys. J. Spec. Top. (2025). https://doi.org/10.1140/epjs/s11734-025-02018-8
Comments
Copyright © 2025, The Authors, under exclusive license to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature
This subscription-access article is published online ahead of inclusion in a future issue of The European Physical Journal Special Topics
This research was carried out with the support of the grant PHY25012 using resources from the Texas Advanced Computing Center (TACC) at the University of Texas at Austin.