54 citations · 135 across the 11 of their papers we have counts for
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Vulnerability to Parameter Spread in Josephson Traveling-Wave Parametric Amplifiers
Christoph Kissling, Victor Gaydamachenko, Fabian Kaap +4
We analyze the effect of circuit parameter variation on the performance of Josephson traveling-wave parametric amplifiers (JTWPAs). Specifically, the JTWPA concept we investigate i…
Superconducting microwave resonators with non-centrosymmetric nonlinearity
M. Khabipov, V. Gaydamachenko, C. Kissling +2
We investigated both theoretically and experimentally open-ended coplanar waveguide resonators with rf SQUIDs embedded in the central conductor at different positions. These rf SQU…
Traveling-wave parametric amplifier based on three-wave mixing in a Josephson metamaterial
A. B. Zorin, M. Khabipov, J. Dietel +1
We have developed a recently proposed Josephson traveling-wave parametric amplifier with three-wave mixing [A. B. Zorin, Phys. Rev. Applied 6, 034006, 2016]. The amplifier consists…
NbSi nanowire quantum-phase-slip circuits: dc supercurrent blockade, microwave measurements and thermal analysis
C. H. Webster, J. C. Fenton, T. T. Hongisto +3
We present a detailed report of microwave irradiation of ultra-narrow superconducting nanowires. In our nanofabricated circuits containing a superconducting NbSi nanowire, a dc blo…
Modeling of quasiparticle-induced excitations of a Josephson charge-phase qubit
J. Könemann, H. Zangerle, B. Egeling +4
We have analyzed quasiparticle transitions in an Al charge-phase qubit inducing a dynamic change of the qubit states. The time-averaged mixed state is related to the strong couplin…
Single flux quantum circuits with damping based on dissipative transmission lines
E. M. Tolkacheva, D. V. Balashov, M. I. Khabipov +1
We propose and demonstrate the functioning of a special Rapid Single Flux Quantum (RSFQ) circuit with frequency-dependent damping. This damping is achieved by shunting individual J…