Observation of the Bloch-Siegert shift in a qubit-oscillator system in the ultrastrong coupling regime P Forn-Díaz, J Lisenfeld, D Marcos, JJ Garcia-Ripoll, E Solano, ...
Physical review letters 105 (23), 237001, 2010
817 2010 Towards understanding two-level-systems in amorphous solids-insights from quantum circuits C Müller, JH Cole, J Lisenfeld
Reports on Progress in Physics 82, 124501, 2019
403 2019 Implementation of superconductor/ferromagnet/superconductor π-shifters in superconducting digital and quantum circuits AK Feofanov, VA Oboznov, VV Bol’Ginov, J Lisenfeld, S Poletto, ...
Nature Physics 6 (8), 593-597, 2010
289 2010 Quantum dynamics of a single vortex A Wallraff, A Lukashenko, J Lisenfeld, A Kemp, MV Fistul, Y Koval, ...
Nature 425 (6954), 155-158, 2003
214 2003 Correlating decoherence in transmon qubits: Low frequency noise by single fluctuators S Schlör, J Lisenfeld, C Müller, A Schneider, DP Pappas, AV Ustinov, ...
Phys. Rev. Lett. 123, 190502, 2019
173 2019 Observation of directly interacting coherent two-level systems in an amorphous material J Lisenfeld, GJ Grabovskij, C Müller, JH Cole, G Weiss, AV Ustinov
Nature communications 6 (1), 6182, 2015
171 2015 Enhanced Macroscopic Quantum Tunneling in Intrinsic Josephson-Junction Stacks XY Jin, J Lisenfeld, Y Koval, A Lukashenko, AV Ustinov, P Müller
Physical review letters 96 (17), 177003, 2006
167 2006 Strain tuning of individual atomic tunneling systems detected by a superconducting qubit GJ Grabovskij, T Peichl, J Lisenfeld, G Weiss, AV Ustinov
Science 338 (6104), 232-234, 2012
164 2012 Interacting two-level defects as sources of fluctuating high-frequency noise in superconducting circuits C Müller, J Lisenfeld, A Shnirman, S Poletto
Physical Review B 92 (3), 035442, 2015
155 2015 Measuring the temperature dependence of individual two-level systems by direct coherent control J Lisenfeld, C Müller, JH Cole, P Bushev, A Lukashenko, A Shnirman, ...
Physical review letters 105 (23), 230504, 2010
104 2010 Static and dynamic properties of 0, π, and 0− π ferromagnetic Josephson tunnel junctions J Pfeiffer, M Kemmler, D Koelle, R Kleiner, E Goldobin, M Weides, ...
Physical Review B 77 (21), 214506, 2008
98 2008 Electric field spectroscopy of material defects in transmon qubits J Lisenfeld, A Bilmes, A Megrant, R Barends, J Kelly, P Klimov, G Weiss, ...
npj Quantum Information 5 (1), 105, 2019
95 2019 Decoherence spectroscopy with individual two-level tunneling defects J Lisenfeld, A Bilmes, S Matityahu, S Zanker, M Marthaler, M Schechter, ...
Scientific Reports, 23786, 2016
90 2016 Selective darkening of degenerate transitions demonstrated with two superconducting quantum bits PC De Groot, J Lisenfeld, RN Schouten, S Ashhab, A Lupaşcu, ...
Nature Physics 6 (10), 763-766, 2010
86 2010 Temperature dependence of coherent oscillations in Josephson phase qubits J Lisenfeld, A Lukashenko, M Ansmann, JM Martinis, AV Ustinov
Physical review letters 99 (17), 170504, 2007
78 2007 Rabi spectroscopy of a qubit-fluctuator system J Lisenfeld, C Müller, JH Cole, P Bushev, A Lukashenko, A Shnirman, ...
Physical Review B 81 (10), 100511, 2010
58 2010 Resolving the positions of defects in superconducting quantum bits A Bilmes, A Megrant, P Klimov, G Weiss, JM Martinis, AV Ustinov, ...
Scientific reports 10 (1), 3090, 2020
57 2020 Coherent oscillations in a superconducting tunable flux qubit manipulated without microwaves S Poletto, F Chiarello, MG Castellano, J Lisenfeld, A Lukashenko, ...
New Journal of Physics 11 (1), 013009, 2009
56 2009 Quantitative evaluation of defect-models in superconducting phase qubits JH Cole, C Müller, P Bushev, GJ Grabovskij, J Lisenfeld, A Lukashenko, ...
Applied Physics Letters 97 (25), 2010
55 2010 Multiphoton spectroscopy of a hybrid quantum system P Bushev, C Müller, J Lisenfeld, JH Cole, A Lukashenko, A Shnirman, ...
Physical Review B 82 (13), 134530, 2010
44 2010