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Trapped Ion Quantum Computing Superconducting Qubits

Quantum estimation via parametric amplification in circuit QED arrays

arXiv
Authors: Ashley Wilkins, Carlos Sabín

Year

2015

Paper ID

27250

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We propose a scheme for quantum estimation by means of parametric amplification in circuit Quantum Electrodynamics. The modulation of a SQUID interrupting a superconducting waveguide transforms an initial thermal two-mode squeezed state in such a way that the new state is sensitive to the features of the parametric amplifier. We find the optimal initial parameters which maximize the Quantum Fisher Information. In order to achieve a large number of independent measurements we propose to use an array of non-interacting resonators. We show that the combination of both large QFI and large number of measurements enables -in principle- the use of this setup for Quantum Metrology applications.

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  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2015 reference point for readers tracking recent quantum research.
  • We propose a scheme for quantum estimation by means of parametric amplification in circuit Quantum Electrodynamics.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1509.04142 [2] arXiv https://arxiv.org/abs/1509.04142 [3] Publisher https://arxiv.org/abs/1509.04142

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