Year: 2019
Type: article
Abstract: Low-frequency charge noise is a dominant source of decoherence in many solid-state qubit platforms. Conventionally, the noise is modeled as a bath of two-level fluctuators that activate or tunnel between minima in a potential energy landscape. Here, the authors describe measurements of charge noise in a superconducting qubit that suggest an unexpected dependence of the noise on the device scale. The measurements cannot be explained by the two-level fluctuate model. Rather, they are consistent with charge drift.
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, Office of the Director of National Intelligence, Oak Ridge Institute for Science and Education, Intelligence Advanced Research Projects Activity, Intelligence Community Postdoctoral Research Fellowship Program, Division of Materials Research, Laboratory Directed Research and Development, Army Research Office, Lawrence Livermore National Laboratory
Awards: G1088636562, G1332609563, G1356433355, G14554683, G2145270357, G3331686884, G4744444288, G5345980760, Wisconsin Materials Research Science and Engineering Center, G61608120, NNCI: Cornell Nanoscale Science and Technology Facility (CNF), G657448715, G6794658411, G7452299184, G7458958076, G991281326
OpenAlex ID: W2947769555