Broadband detection of 18 teeth in an 11-dB squeezing comb

verfasst von

Dennis Wilken, Jonas Junker, Michèle Heurs

Abstract

Squeezed vacuum is a versatile resource of bipartite entanglement for quantum metrology and information. Optical parametric oscillators generate these states in a frequency comb structure. We show the simultaneous detection of 18 teeth with 11 dB of squeezing each. We built a 1.5-m-long optical resonator to increase the spectral teeth density and significantly increase the detection bandwidth by employing unbalanced homodyne detection instead of balanced. Our approach can be a crucial step in using the scaling potential of high-frequency squeezed states in quantum information.

Organisationseinheit(en)

Institut für Gravitationsphysik
QuantumFrontiers

Externe Organisation(en)

Australian National University
Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)

Typ

Artikel

Journal

Physical review applied

Band

21

Anzahl der Seiten

6

ISSN

2331-7019

Publikationsdatum

04.03.2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik und Astronomie (insg.)

Elektronische Version(en)

https://doi.org/10.1103/PhysRevApplied.21.L031002 (Zugang: Offen)