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Photonic Quantum Computing

Coherent and incoherent light scattering by single-atom wavepackets

arXiv
Authors: Vitaly Fedoseev, Hanzhen Lin, Yu-Kun Lu, Yoo Kyung Lee, Jiahao Lyu, Wolfgang Ketterle

Year

2024

Paper ID

37634

Status

Preprint

Abstract Read

~2 min

Abstract Words

94

Citations

N/A

Abstract

We study light scattering of single atoms in free space and discuss the results in terms of atom-photon entanglement and which-way information. Using ultracold atoms released from an optical lattice, we realize a Gedanken experiment which interferes single photons scattering off of Heisenberg uncertainty-limited wavepackets. We unify the free-space and trapped-atom pictures by measuring the light scattered during wavepacket expansion and show the coherence properties of the scattered light is independent of the presence of the trap. Our experiment demonstrates the potential of using atomic Mott insulators to create single-atom wavepackets for fundamental studies.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2024 reference point for readers tracking recent quantum research.
  • We study light scattering of single atoms in free space and discuss the results in terms of atom-photon entanglement and which-way information.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2410.19671 [2] arXiv https://arxiv.org/abs/2410.19671 [3] Publisher https://arxiv.org/abs/2410.19671

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