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Limits of quantum sensing for dephasing noise

Published on:

8 February 2024

Primary Category:

Quantum Physics

Paper Authors:

Zixin Huang,

Ludovico Lami,

Mark M. Wilde


Key Details

Establishes optimal strategies for quantum sensing of dephasing noise

Reduces difficult quantum problems to simpler classical ones

Provides first exact solutions for non-Gaussian channel model

Explicitly constructs strategies that achieve performance limits

AI generated summary

Limits of quantum sensing for dephasing noise

This paper determines the fundamental limits of distinguishing and estimating bosonic dephasing channels, which are prominent noise processes in quantum technologies. By connecting these quantum information tasks to simpler classical probability problems, the authors establish optimal strategies with rigorous proofs. Their work solves an open problem, providing exact solutions for a non-Gaussian bosonic channel model.

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