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Trapped Ion Quantum Computing

Single-shot single-mode optical two-parameter displacement estimation beyond classical limit

arXiv
Authors: Fumiya Hanamura, Warit Asavanant, Seigo Kikura, Moeto Mishima, Shigehito Miki, Hirotaka Terai, Masahiro Yabuno, Fumihiro China, Kosuke Fukui, Mamoru Endo, Akira Furusawa

Year

2023

Paper ID

55386

Status

Preprint

Abstract Read

~2 min

Abstract Words

82

Citations

N/A

Abstract

Uncertainty principle prohibits the precise measurement of both components of displacement parameters in phase space. We have theoretically shown that this limit can be beaten using single-photon states, in a single-shot and single-mode setting [F. Hanamura et al., Phys. Rev. A 104, 062601 (2021)]. In this paper, we validate this by experimentally beating the classical limit. In optics, this is the first experiment to estimate both parameters of displacement using non-Gaussian states. This result is related to many important applications, such as quantum error correction.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2023 reference point for readers tracking recent quantum research.
  • Uncertainty principle prohibits the precise measurement of both components of displacement parameters in phase space.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2308.15024 [2] arXiv https://arxiv.org/abs/2308.15024 [3] Publisher https://arxiv.org/abs/2308.15024

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