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arXiv · 1603.06590

Strongly interacting photons in one-dimensional continuum

Dibyendu Roy·C. M. Wilson·Ofer Firstenberg
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Abstract

Photon-photon scattering in vacuum is extremely weak. However, strong effective interactions between single photons can be realized by employing strong light-matter coupling. These interactions are a fundamental building block for quantum optics, bringing many-body physics to the photonic world and providing important resources for quantum photonic devices and for optical metrology. In this Colloquium, we review the physics of strongly-interacting photons in one-dimensional systems with no optical confinement along the propagation direction. We focus on two recently-demonstrated experimental realizations: superconducting qubits coupled to open transmission lines, and interacting Rydberg atoms in a cold gas. Advancements in the theoretical understanding of these systems are presented in complementary formalisms and compared to experimental results. The experimental achievements are summarized alongside a description of the quantum optical effects and quantum devices emerging from them.

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Dibyendu Roy, C. M. Wilson, Ofer Firstenberg. 2016-03-21. Strongly interacting photons in one-dimensional continuum. https://doi.org/10.1103/revmodphys.89.021001

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