Working Group Superconducting Quantum Circuits

Selected Publications


Rabi oscillations in a superconducting nanowire circuit

Y. Schön, J. N. Voss, M. Wildermuth, A. Schneider, . T. Skacel, M. P. Weides, J. H. Cole, H. Rotzinger, A. V. Ustinov

npj Quantum Mater. 5 (2020) 18



Current-Resistance Effects Inducing Nonlinear Fluctuation Mechanisms in Granular Aluminum Oxide Nanowires

C. Barone, H. Rotzinger, J. N. Voss, C. Mauro, Y. Schön, A. V. Ustinov, S. Pagano

Nanomaterials 10 (2020) 524



Circuit Quantum Electrodynamics of Granular Aluminum Resonators

N. Maleeva, L. Grünhaupt, T. Klein, F. Levy-Bertrand, O. Dupre, M. Calvo, F. Valenti, P. Winkel, F. Friedrich, W. Wernsdorfer, A. V. Ustinov, H. Rotzinger, A. Monfardini, M. V. Fistul, I. M. Pop

Nat. Commun. 9 (2018) 3889



Electric field spectroscopy of material defects in transmon qubits

J. Lisenfeld, A. Bilmes, A. Megrant, R. Barends, J. Kelly, P. Klimov, G. Weiss, J. M. Martinis, A. V. Ustinov

npj Quantum Inf. 5 (2019) 105



Transmon qubit in a magnetic field: Evolution of coherence and transition frequency

A. Schneider, T. Wolz, M. Pfirrmann, M. Spiecker, H. Rotzinger, A. V. Ustinov, M. Weides

Phys. Rev. Res. 1 (2019) 23003



Charge quantum interference device

S. E. de Graaf, S. T. Skacel, T. Hönigl-Decrinis, R. Shaikhaidarov, H. Rotzinger, S. Linzen, M. Ziegler, U. Hübner, H.-G. Meyer, V. Antonov, E. Il'ichev, A. V. Ustinov, A. Ya. Tzalenchuk, O. V. Astafiev

Nat. Phys. 14 (2018) 590



Granular aluminium as a superconducting material for high-impedance quantum circuits

L. Grünhaupt, M. Spiecker, D. Gusenkova, N. Maleeva, S. T. Skacel, I. Takmakov, F. Valenti, P. Winkel, H. Rotzinger, W. Wernsdorfer, A. V. Ustinov, I. M. Pop

Nat. Mater. 18 (2019) 816



Loss Mechanisms and Quasiparticle Dynamics in Superconducting Microwave Resonators Made of Thin-Film Granular Aluminum

L. Grünhaupt, N. Maleeva, S. T. Skacel, M. Calvo, F. Levy-Bertrand, A. V. Ustinov, H. Rotzinger, A. Monfardini, G. Catelani, I. M. Pop

Phys. Rev. Lett. 121 (2018) 117001



Analog quantum simulation of the Rabi model in the ultra-strong coupling regime

J. Braumüller, M. Marthaler, A. Schneider, A. Stehli, H. Rotzinger, M. Weides, A. V. Ustinov

Nat. Commun. 8 (2017) 779



Aluminium-oxide wires for superconducting high kinetic inductance circuits

H. Rotzinger, S. T. Skacel, M. Pfirrmann, J. N. Voss, J. Münzberg, S. Probst, P. Bushev, M. P. Weides, A. V. Ustinov, J. E. Mooij

Supercond. Sci. Technol. 30 (2017) 25002



Superconductor-insulator transition in nanowires and nanowire arrays

J. E. Mooij, G Schön, A. Shnirman, T. Fuse, C. J. P. M. Harmans, H. Rotzinger, A. H. Verbruggen

New J. Phys. 17 (2015) 33006



Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator

S. Probst, H. Rotzinger, S. Wünsch, P. Jung, M. Jerger, M. Siegel, A. V. Ustinov, and P. A. Bushev

Phys. Rev. Lett. 110 (2013) 157001



Ultralow-power spectroscopy of a rare-earth spin ensemble using a superconducting resonator

P. Bushev, A. K. Feofanov, H. Rotzinger, I. Protopopov, J. H. Cole, C. M. Wilson, G. Fischer, A. Lukashenko, A. V. Ustinov

Phys. Rev. B 84 (2011) 60501