880 citations · 1.6k across the 6 of their papers we have counts for
6 papers
Spectroscopy of low-frequency noise and its temperature dependence in a superconducting qubit
Fei Yan, Jonas Bylander, Simon Gustavsson +7
We report a direct measurement of the low-frequency noise spectrum in a superconducting flux qubit. Our method uses the noise sensitivity of a free-induction Ramsey interference ex…
Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
Jonas Bylander, Simon Gustavsson, Fei Yan +7
The characterization and mitigation of decoherence in natural and artificial two-level systems (qubits) is fundamental to quantum information science and its applications. Decohere…
Interqubit coupling mediated by a high-excitation-energy quantum object
S. Ashhab, A. O. Niskanen, K. Harrabi +6
We consider a system composed of two qubits and a high-excitation-energy quantum object used to mediate coupling between the qubits. We treat the entire system quantum mechanically…
Spectroscopy of three strongly coupled flux qubits
A. O. Niskanen, K. Harrabi, F. Yoshihara +2
We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupli…
Decoherence of flux qubits due to 1/f flux noise
F. Yoshihara, K. Harrabi, A. O. Niskanen +2
We have investigated decoherence in Josephson-junction flux qubits. Based on the measurements of decoherence at various bias conditions, we discriminate contributions of different…
Counting Individual Electrons on Liquid Helium
G. Papageorgiou, P. Glasson, K. Harrabi +8
We show that small numbers of electrons, including a single electron, can be held in a novel electrostatic trap above the surface of superfluid helium. A potential well is created…