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arXiv · 2504.12942

Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer

Lei Du·Xin Wang·Anton Frisk Kockum·Janine Splettstoesser
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Abstract

We introduce the concept of giant superatoms (GSAs), where two or more interacting atoms are nonlocally coupled to a waveguide through one of them, and explore their unconventional quantum dynamics. For braided GSAs, this setup enables decoherence-free transfer and swapping of their internal entangled states. For separate GSAs, engineering coupling phases leads to state-dependent chiral emission, which enables selective, directional quantum information transfer. This mechanism further facilitates remote generation of W-class entangled states. Our results thereby open exciting possibilities for quantum networks and quantum information processing.

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Lei Du, Xin Wang, Anton Frisk Kockum, Janine Splettstoesser. 2025-04-17. Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer. https://doi.org/10.1103/crzs-k718

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