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Trapped Ion Quantum Computing

Single-atom transistor as a precise magnetic field sensor

arXiv
Authors: Krzysztof Jachymski, Tomasz Wasak, Zbigniew Idziaszek, Paul S. Julienne, Antonio Negretti, Tommaso Calarco

Year

2017

Paper ID

44535

Status

Preprint

Abstract Read

~2 min

Abstract Words

88

Citations

N/A

Abstract

Feshbach resonances, which allow for tuning the interactions of ultracold atoms with an external magnetic field, have been widely used to control the properties of quantum gases. We propose a scheme for using scattering resonances as a probe for external fields, showing that by carefully tuning the parameters it is possible to reach a 10-5G (or nT) level of precision with a single pair of atoms. We show that for our collisional setup it is possible to saturate the quantum precision bound with a simple measurement protocol.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • Feshbach resonances, which allow for tuning the interactions of ultracold atoms with an external magnetic field, have been widely used to control the properties of quantum gases.

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