Generating Multimode Entangled Microwaves with a Superconducting Parametric Cavity
Artikel i vetenskaplig tidskrift, 2018

We demonstrate the generation of multimode entangled states of propagating microwaves. The entangled states are generated by our parametrically pumping a multimode superconducting cavity. By combining different pump frequencies, applied simultaneously to the device, we can produce different entanglement structures in a programable fashion. The Gaussian output states are fully characterized by our measuring the full covariance matrices of the modes. The covariance matrices are absolutely calibrated by our using an in situ microwave calibration source, a shot-noise tunnel junction. Applying a variety of entanglement measures, we demonstrate both full inseparability and genuine tripartite entanglement of the states. Our method is easily extensible to more modes.

Författare

C. W. Sandbo Chang

University of Waterloo

Michael Roger Andre Simoen

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Jose Aumentado

NIST, 325 Broadway

Carlos Sabin

CSIC - Instituto de Fisica Fundamental (IFF)

P. Forn-Diaz

University of Waterloo

A. M. Vadiraj

University of Waterloo

Isaac Fernando Quijandria Diaz

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Göran Johansson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

I Fuentes

University of Nottingham

Universität Wien

C. M. Wilson

University of Waterloo

Physical Review Applied

2331-7019 (eISSN)

Vol. 10 4 044019

Ämneskategorier

Atom- och molekylfysik och optik

Annan fysik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevApplied.10.044019

Mer information

Senast uppdaterat

2019-01-24