Title :
Capacitively coupled Josephson junctions: A two-qubit system
Author :
Ramos, R.C. ; Strauch, F.W. ; Johnson, P.R. ; Berkley, A.J. ; Xu, H. ; Gubrud, M.A. ; Anderson, J.R. ; Lobb, C.J. ; Dragt, A.J. ; Wellstood, F.C.
Author_Institution :
Dept. of Phys., Univ. of Maryland, College Park, MD, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
We describe how single Josephson junctions can be connected together capacitively to form a two-qubit system. We discuss the general behavior of this system show the energy level dependence on various junction parameters and choice of coupling strengths. We also discuss measurement techniques for reading out both qubits which are relevant to our ongoing experiments.
Keywords :
Josephson effect; quantum computing; Josephson junction; capacitive coupling; energy level; quantum coherence; quantum computing; two-qubit system; Coupling circuits; Energy states; Josephson junctions; Measurement techniques; Quantum computing; Quantum mechanics; SQUIDs; Spectroscopy; Superconducting device noise; Superconducting devices;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.814122
