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arXiv · 2506.05147

Superbunching from coherently driven atoms in a waveguide

Zeidan Zeidan·Therese Karmstrand·Maryam Khanahmadi·Göran Johansson
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Abstract

We investigate the scattered field from $N$ identical two-level atoms resonantly driven by a weak coherent field in a one-dimensional waveguide. For atoms separated by the drive wavelength, increasing the number of atoms progressively suppresses transmission while enhancing photon bunching. Transmission becomes a superbunched $(N+1)$-photon scattering process that is predominantly incoherent. Remarkably, we find that this transmission is only possible through a process where all $N$ atoms are excited, enabling heralded multi-photon state generation with applications in long-distance entanglement and quantum metrology.

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Zeidan Zeidan, Therese Karmstrand, Maryam Khanahmadi, Göran Johansson. 2025-06-05. Superbunching from coherently driven atoms in a waveguide. https://doi.org/10.1103/6fcg-2zns

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