Observation of two-mode squeezing in the microwave frequency domain

Bozyigit D, Lang C, Baur M, Steffen L, Fink JM, Filipp S, Wallraff AJ, Eichler C (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Physical Review Letters American Physical Society

Book Volume: 107

Article Number: 113601

Journal Issue: 11

DOI: 10.1103/PhysRevLett.107.113601

Abstract

Continuous variable entanglement between two modes of a radiation field is usually studied at optical frequencies. Here we demonstrate experiments that show the entanglement between microwave photons of different energy in a broadband squeezed beam. We use a Josephson parametric amplifier to generate the two-mode correlated state and detect all four quadrature components simultaneously in a two-channel heterodyne setup using amplitude detectors. Analyzing two-dimensional phase space histograms for all possible pairs of quadratures allows us to determine the full covariance matrix, which is in good agreement with the one expected for a two-mode squeezed state. © 2011 American Physical Society.

Authors with CRIS profile

Christopher Eichler

Involved external institutions

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich CH Switzerland (CH)

How to cite

APA:

Bozyigit, D., Lang, C., Baur, M., Steffen, L., Fink, J.M., Filipp, S.,... Eichler, C. (2011). Observation of two-mode squeezing in the microwave frequency domain. Physical Review Letters, 107(11). https://doi.org/10.1103/PhysRevLett.107.113601

MLA:

Bozyigit, Deniz, et al. "Observation of two-mode squeezing in the microwave frequency domain." Physical Review Letters 107.11 (2011).

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