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, Kvantkomponentfysik
Jose Aumentado
NIST, 325 Broadway
Carlos Sabin
Consejo Superior de Investigaciones Científicas (CSIC)
P. Forn-Diaz
University of Waterloo
A. M. Vadiraj
University of Waterloo
Isaac Fernando Quijandria Diaz
Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik
Göran Johansson
Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik
I Fuentes
Universität Wien
University of Nottingham
C. M. Wilson
University of Waterloo
Physical Review Applied
2331-7019 (eISSN)
Vol. 10 4 044019Styrkeområden
Nanovetenskap och nanoteknik
Ämneskategorier (SSIF 2011)
Atom- och molekylfysik och optik
Annan fysik
Den kondenserade materiens fysik
DOI
10.1103/PhysRevApplied.10.044019