Carsten Hutter, Yuriy Makhlin, Alexander Shnirman, Gerd Schön
Published 2007-01-20, updated 2007-07-20Version 2
For inductively coupled superconducting quantum bits, we determine the conditions when the coupling commutes with the single-qubit terms. We show that in certain parameter regimes such longitudinal coupling can be stabilized with respect to variations of the circuit parameters. In addition, we analyze its stability against fluctuations of the control fields.
Comments: 5 pages, 2 figures; additional discussion and references
Journal: Phys. Rev. B 76, 024512 (2007)
Models of environment and T_1 relaxation in Josephson Charge Qubits
Longitudinal coupling between electrically driven spin-qubits and a resonator
Variable electrostatic transformer: controllable coupling of two charge qubits
