953 citations · 1.3k across the 9 of their papers we have counts for
9 papers
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…
Generating Multimode Entangled Microwaves with a Superconducting Parametric Cavity
C. W. Sandbo Chang, M. Simoen, José Aumentado +7
In this Letter, we demonstrate the generation of multimode entangled states of propagating microwaves. The entangled states are generated by parametrically pumping a multimode supe…
Microwave photon generation in a doubly tunable superconducting resonator
Ida-Maria Svensson, Mathieu Pierre, Michaël Simoen +7
We have developed and tested a doubly tunable resonator, with the intention to simulate fast motion of the resonator boundaries in real space. Our device is a superconducting copla…
Simple, robust and on-demand generation of single and correlated photons
Sankar Raman Sathyamoorthy, Andreas Bengtsson, Steven Bens +3
We propose two different setups to generate single photons on demand using an atom in front of a mirror, along with either a beam-splitter or a tunable coupling. We show that photo…
Single-shot Readout of a Superconducting Qubit using a Josephson Parametric Oscillator
Philip Krantz, Andreas Bengtsson, Michaël Simoen +6
We propose and demonstrate a new read-out technique for a superconducting qubit by dispersively coupling it to a Josephson parametric oscillator. We employ a tunable quarter-wavele…
Characterization of a multimode coplanar waveguide parametric amplifier
M. Simoen, C. W. S. Chang, P. Krantz +5
We characterize a novel Josephson parametric amplifier based on a flux-tunable quarter-wavelength resonator. The fundamental resonance frequency is ~1GHz, but we use higher modes o…
The pumpistor: a linearized model of a flux-pumped SQUID for use as a negative-resistance parametric amplifier
K. M. Sundqvist, S. Kintaş, M. Simoen +4
We describe a circuit model for a flux-driven SQUID. This is useful for developing insight into how these devices perform as active elements in parametric amplifiers. The key conce…
Coupling of an erbium spin ensemble to a superconducting resonator
Matthias U. Staudt, Io-Chun Hoi, Philip Krantz +9
A quantum coherent interface between optical and microwave photons can be used as a basic building block within a future quantum information network. The interface is envisioned as…
Observation of the Dynamical Casimir Effect in a Superconducting Circuit
C. M. Wilson, G. Johansson, A. Pourkabirian +4
One of the most surprising predictions of modern quantum theory is that the vacuum of space is not empty. In fact, quantum theory predicts that it teems with virtual particles flit…