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Period multiplication in a parametrically driven superconducting resonator
Ida-Maria Svensson, Andreas Bengtsson, Jonas Bylander +2
We report on the experimental observation of period multiplication in parametrically driven tunable superconducting resonators. We modulate the magnetic flux through a superconduct…
Observation of broadband entanglement in microwave radiation from a single time-varying boundary condition
B. H. Schneider, A. Bengtsson, I. M. Svensson +4
Entangled pairs of microwave photons are commonly produced in the narrow frequency band of a resonator, which represents a modified vacuum density of states. We use a broadband, se…
Noise and loss of superconducting aluminium resonators at single photon energies
Jonathan Burnett, Andreas Bengtsson, David Niepce +1
The loss and noise mechanisms of superconducting resonators are useful tools for understanding decoherence in superconducting circuits. While the loss mechanisms have been heavily…
Nondegenerate parametric oscillations in a tunable superconducting resonator
Andreas Bengtsson, Philip Krantz, Michaël Simoen +5
We investigate nondegenerate parametric oscillations in a multimode superconducting microwave resonator that is terminated by a SQUID. The parametric effect is achieved by modulati…