Digital homodyne and heterodyne detection for stationary bosonic modes

• URL: http://arxiv.org/abs/2312.14720v1
• Date: Fri, 22 Dec 2023 14:29:17 GMT
• Title: Digital homodyne and heterodyne detection for stationary bosonic modes
• Authors: Ingrid Strandberg, Axel Eriksson, Baptiste Royer, Mikael Kervinen, Simone Gasparinetti
• Abstract summary: Homo- and heterodyne detection are fundamental techniques for measuring propagating electromagnetic fields. Applying these techniques to stationary fields confined in cavities poses a challenge. We propose to use repeated indirect measurements of a two-level system interacting with the cavity.
• Score: 3.3853618170170763
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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