Digital homodyne and heterodyne detection for stationary bosonic modes

Fuente: arXiv
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Main Authors: Strandberg, Ingrid, Eriksson, Axel, Royer, Baptiste, Kervinen, Mikael, Gasparinetti, Simone
Format: Preprint
Published: 2023
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author Strandberg, Ingrid
Eriksson, Axel
Royer, Baptiste
Kervinen, Mikael
Gasparinetti, Simone
author_facet Strandberg, Ingrid
Eriksson, Axel
Royer, Baptiste
Kervinen, Mikael
Gasparinetti, Simone
contents Homo- and heterodyne detection are fundamental techniques for measuring propagating electromagnetic fields. However, applying these techniques to stationary fields confined in cavities poses a challenge. As a way to overcome this challenge, we propose to use repeated indirect measurements of a two-level system interacting with the cavity. We demonstrate numerically that the proposed measurement scheme faithfully reproduces measurement statistics of homo- or heterodyne detection at the single-shot level. The scheme can be implemented in various physical architectures, including circuit quantum electrodynamics. Our results pave the way to the implementation of quantum algorithms requiring linear detection, including quantum verification protocols, in stationary modes.
format Preprint
id arxiv_https___arxiv_org_abs_2312_14720
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Digital homodyne and heterodyne detection for stationary bosonic modes
Strandberg, Ingrid
Eriksson, Axel
Royer, Baptiste
Kervinen, Mikael
Gasparinetti, Simone
Quantum Physics
Homo- and heterodyne detection are fundamental techniques for measuring propagating electromagnetic fields. However, applying these techniques to stationary fields confined in cavities poses a challenge. As a way to overcome this challenge, we propose to use repeated indirect measurements of a two-level system interacting with the cavity. We demonstrate numerically that the proposed measurement scheme faithfully reproduces measurement statistics of homo- or heterodyne detection at the single-shot level. The scheme can be implemented in various physical architectures, including circuit quantum electrodynamics. Our results pave the way to the implementation of quantum algorithms requiring linear detection, including quantum verification protocols, in stationary modes.
title Digital homodyne and heterodyne detection for stationary bosonic modes
topic Quantum Physics
url https://arxiv.org/abs/2312.14720