482 citations · 832 across the 3 of their papers we have counts for
5 papers
AC-Stark Shift and Dephasing of a Superconducting Qubit Strongly Coupled to a Cavity Field
D. I. Schuster, A. Wallraff, A. Blais +5
We have spectroscopically measured the energy level separation of a superconducting charge qubit coupled non-resonantly to a single mode of the electromagnetic field of a supercond…
Spectroscopy on two coupled flux qubits
J. B. Majer, F. G. Paauw, A. C. J. ter Haar +2
We have performed spectroscopy measurements on two coupled flux qubits. The qubits are coupled inductively, which results in a interaction. By applying microwave radia…
Quantum ratchet effect for vortices
J. B. Majer, J. Peguiron, M. Grifoni +2
We have measured a quantum ratchet effect for vortices moving in a quasi-one-dimensional Josephson junction array. In this solid-state device the shape of the vortex potential ener…
Simple Phase Bias for Superconducting Circuits
J. B. Majer, J. R. Butcher, J. E. Mooij
A phase-bias tool, based on a trapped fluxoid in a ring, is proposed and demonstrated. It can provide arbitrary phase values and is simple to fabricate. The phase bias has been rea…
Quantum spin chains and Majorana states in arrays of coupled qubits
L. S. Levitov, T. P. Orlando, J. B. Majer +1
Several designs of inter-qubit coupling are considered. It is shown that by a combination of Josephson and capacitive coupling one can realize qubit interactions of variable spin c…