Period multiplication in a parametrically driven superconducting resonator
Artikel i vetenskaplig tidskrift, 2018

We report on the experimental observation of period multiplication in parametrically driven tunable superconducting resonators. We modulate the magnetic flux through a superconducting quantum interference device, attached to a quarter-wavelength resonator, with frequencies nω close to multiples, n = 2, 3, 4, and 5, of the resonator fundamental mode and observe intense output radiation at ω. The output field manifests n-fold degeneracy with respect to the phase, and the n states are phase shifted by 2π/n with respect to each other. Our demonstration verifies the theoretical prediction by Guo et al. [Phys. Rev. Lett. 111, 205303 (2013)] and paves the way for engineering complex macroscopic quantum cat states with microwave photons.


Ida-Maria Svensson

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Andreas Bengtsson

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Jonas Bylander

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Vitaly Shumeiko

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Per Delsing

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 113 2 022602


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