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Building logical qubits in a superconducting quantum computing system
Jay M. Gambetta, Jerry M. Chow, Matthias Steffen
The technological world is in the midst of a quantum computing and quantum information revolution. Since Richard Feynman's famous "plenty of room at the bottom" lecture, hinting at…
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…
Reducing Spontaneous Emission in Circuit Quantum Electrodynamics by a Combined Readout/Filter Technique
Nicholas T. Bronn, Easwar Magesan, Nicholas A. Masluk +3
Physical implementations of qubits can be extremely sensitive to environmental coupling, which can result in decoherence. While efforts are made for protection, coupling to the env…