191 citations · 1.9k across the 47 of their papers we have counts for
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Parametric amplification by coupled flux qubits
M. Rehak, P. Neilinger, M. Grajcar +4
We report the parametric amplification of a microwave signal in a Kerr medium formed from superconducting qubits. Two mutually coupled flux qubits, embedded in the current antinode…
Quantized resonator field coupled to a current-biased Josephson junction in circuit QED
Christian Kraglund Andersen, Gregor Oelsner, Evgeni Il'ichev +1
A Lagrangian formalism is used to derive the Hamiltonian for a /4 resonator shunted by a current-biased Josephson junction. The eigenstates and the quantum dynamics of the syste…
Electromagnetically induced transparency and Autler-Townes splitting in superconducting flux quantum circuits
Hui-Chen Sun, Yu-xi Liu, J. Q. You +2
We study the microwave absorption of a driven three-level quantum system, which is realized by a superconducting flux quantum circuit (SFQC), with a magnetic driving field applied…
Implementation of a Quantum Metamaterial
Pascal Macha, Gregor Oelsner, Jan-Michael Reiner +7
Manipulating the propagation of electromagnetic waves through sub-wavelength sized artificial structures is the core function of metamaterials. Resonant structures, such as split r…
Amplification and attenuation of a probe signal by doubly-dressed states
S. N. Shevchenko, G. Oelsner, Ya. S. Greenberg +6
We analyse a system composed of a qubit coupled to electromagnetic fields of two high quality quantum oscillators. Particular realization of such a system is the superconducting qu…
Phase diagram of the resistive state of the narrow superconducting channel in the voltage-driven regime
Y. S. Yerin, V. N. Fenchenko, E. Il'ichev
Based on the numerical solution non-stationary Ginzburg-Landau equations, we investigated the evolution of the order parameter of superconducting channels with different lengths un…