283 citations · 450 across the 4 of their papers we have counts for
10 papers
Bulk and surface loss in superconducting transmon qubits
Oliver Dial, Douglas T. McClure, Stefano Poletto +4
Decoherence of superconducting transmon qubits is purported to be consistent with surface loss from two-level systems on the substrate surface. Here, we present a study of surface…
Characterizing a Four-Qubit Planar Lattice for Arbitrary Error Detection
Jerry M. Chow, Srikanth J. Srinivasan, Easwar Magesan +4
Quantum error correction will be a necessary component towards realizing scalable quantum computers with physical qubits. Theoretically, it is possible to perform arbitrarily long…
Blackbox Quantization of Superconducting Circuits using exact Impedance Synthesis
Firat Solgun, David W. Abraham, David P. DiVincenzo
We propose a new quantization method for superconducting electronic circuits involving a Josephson junction device coupled to a linear microwave environment. The method is based on…
Implementing a strand of a scalable fault-tolerant quantum computing fabric
Jerry M. Chow, Jay M. Gambetta, Easwar Magesan +7
Quantum error correction (QEC) is an essential step towards realising scalable quantum computers. Theoretically, it is possible to achieve arbitrarily long protection of quantum in…
Improved superconducting qubit coherence using titanium nitride
J. Chang, M. R. Vissers, A. D. Corcoles +9
We demonstrate enhanced relaxation and dephasing times of transmon qubits, up to ~ 60 μs by fabricating the interdigitated shunting capacitors using titanium nitride (TiN). Compare…
Entanglement of two superconducting qubits in a waveguide cavity via monochromatic two-photon excitation
S. Poletto, Jay M. Gambetta, Seth T. Merkel +9
We report a system where fixed interactions between non-computational levels make bright the otherwise forbidden two-photon 00 --> 11 transition. The system is formed by hand selec…