Reconstructing Gaussian bipartite states with a single polarization-sensitive homodyne detector

authored by

Jonas Junker, Dennis Wilken, Daniel Steinmeyer, Michèle Heurs

Abstract

We present a novel method to fully estimate Gaussian bipartite polarization states using only a single homodyne detector. Our approach is based on [Phys. Rev. Lett. 102, 020502 (2009)], but circumvents additional optics, and thereby losses, in the signal path. We provide an intuitive explanation of our scheme without needing to define auxiliary modes. With six independent measurements, we fully reconstruct the state’s covariance matrix. We validate our method by comparing it to a conventional dual-homodyne measurement scheme.

Organisation(s)

Institute of Gravitation Physics
QuantumFrontiers

Type

Article

Journal

Optics express

Volume

30

Pages

33860-33868

No. of pages

9

ISSN

1094-4087

Publication date

31.08.2022

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1364/OE.465186 (Access: Open)