Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer
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.
Authors
- Lei Du (ORCID: https://orcid.org/0000-0003-0641-440X)
- Xin Wang (ORCID: https://orcid.org/0000-0001-5895-0648)
- Anton Frisk Kockum (ORCID: https://orcid.org/0000-0002-2534-3021)
- Janine Splettstoesser (ORCID: https://orcid.org/0000-0003-1078-9490)
Institutions
- Institute of Theoretical Physics (CN)
- Chalmers University of Technology (SE)
- Xi'an Jiaotong University (CN)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-11-25
- DOI
- https://doi.org/10.1103/crzs-k718
- Citations
- 2
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 2.49
Funders
- Stiftelsen för Strategisk Forskning
- National Natural Science Foundation of China
- Knut och Alice Wallenbergs Stiftelse
- HORIZON EUROPE Framework Programme
- Wallenberg Centre for Molecular and Translational Medicine
- Wallenberg Center for Quantum Technology, Chalmers University of Technology