67 citations · 112 across the 6 of their papers we have counts for
6 papers
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…
Quasi-particle transitions in charge-phase qubits probed by rf oscillations
J. Könemann, H. Zangerle, B. Mackrodt +2
We investigated transitions in Al charge-phase qubits of SQUID-configuration inductively coupled to an rf tank circuit that made it possible to read out the state by measuring the…
Ground-state characterization of Nb charge-phase Josephson qubits
Hermann Zangerle, Jens Könemann, Brigitte Mackrodt +5
We present investigations of Josephson charge-phase qubits inductively coupled to a radio-frequency driven tank-circuit enabling the readout of the states by measuring the Josephso…
Coulomb blockade and cotunneling in single electron circuits with on-chip resistors: towards the implementation of R-pump
A. B. Zorin, S. V. Lotkhov, H. Zangerle +1
We report on the investigation of Al single electron structures equipped with miniature (8 um long) on-chip Cr resistors of R > R_k = h/e^2 = 25.8 kOhm. From the measurement of the…
Storage capabilities of a 4-junction single electron trap with an on-chip resistor
S. V. Lotkhov, H. Zangerle, A. B. Zorin +1
We report on the operation of a single electron trap comprising a chain of four Al/AlOx/Al tunnel junctions attached, at one side, to a memory island and, at the other side, to a m…
Superconducting Electrometer Based on the Resistively Shunted Bloch Transistor
S. V. Lotkhov, H. Zangerle, A. B. Zorin +3
We have fabricated the Bloch transistor shunted on-chip by a small-sized Cr resistor with Rs about 1 kOhm. The Bloch transistor normally consists of two small Josephson junctions c…