675 citations · 5.6k across the 111 of their papers we have counts for
4 papers · 2 filters
Lasing without Inversion in Circuit Quantum Electrodynamics
M. Marthaler, Y. Utsumi, D. S. Golubev +2
We study the photon generation in a transmission line oscillator coupled to a driven qubit in the presence of a dissipative electromagnetic environment. It has been demonstrated pr…
Quantitative evaluation of defect-models in superconducting phase qubits
J. H. Cole, C. Müller, P. Bushev +5
We use high-precision spectroscopy and detailed theoretical modelling to determine the form of the coupling between a superconducting phase qubit and a two-level defect. Fitting th…
Charge solitons and their dynamical mass in 1-D arrays of Josephson junctions
Jens Homfeld, Ivan Protopopov, Stephan Rachel +1
We investigate the charge transport in one-dimensional arrays of Josephson junctions. In the interesting regime of "small charge solitons" (polarons), the charge dynamics is strong…
Measuring the temperature dependence of individual two-level systems by direct coherent control
J. Lisenfeld, C. Müller, J. H. Cole +4
We demonstrate a new method to directly manipulate the state of individual two-level systems (TLS) in phase qubits. It allows one to characterize the coherence properties of TLS us…