Round 6 Projects

Twelve projects that have been chosen for Round 6 of the UW2020: WARF Discovery Initiative. These projects were among 92 proposals submitted from across campus. The initiative is funded by the Office of the Vice Chancellor for Research and Graduate Education and the Wisconsin Alumni Research Foundation. This is the sixth round of UW2020 projects […]

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Interdisciplinary engineering of quantum information systems

This project represents a synergistic effort toward engineering practical quantum information systems (QIS). The research unites the experimental superconducting and semiconducting qubit teams on campus with advanced materials characterization and microwave engineering expertise to uncover the underlying sources of decoherence that limit qubit performance and develop next-generation quantum devices for scalable quantum computing and quantum sensing. […]

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Characterization of the capacitive coupling in a linear array of four quantum dots

The capacitive coupling strength g between two pairs of quantum dots is critical for performing capacitively-coupled two-qubit gates.  Here we characterize both the strength and the tunability of this capacitive coupling in a highly-stable quadruple quantum dot array of gate-define, Si/SiGe quantum dots.

“Measurements of capacitive coupling within a quadruple quantum dot array.” S. F. Neyens, E. R. MacQuarrie, J. P. Dodson, J. Corrigan, Nathan Holman, B. Thorgrimsson, M. Palma, T. McJunkin, L. F. Edge, Mark Friesen, S. N. Coppersmith, and M. A. Eriksson, Phys. Rev. Applied 12, 064049 (2019)

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Eriksson group members present at SQEW in San Sebastian, Spain

Several members of the Eriksson group presented a talk and 5 posters in October, 2019 at the Silicon Quantum Electronics Workshop (SQEW) in San Sebastián, Spain.  The workshop science was outstanding, and so was the city of San Sebastián!

Congratulations, Brandur!

Brandur Thorgrimsson graduates with his Ph.D. in Summer, 2019.  Brandur is off to UNSW, Australia for a postdoc in the group of Professor Michelle Simmons doing work on donor-based qubits in silicon.

A Two-Qubit Quantum Processor in Silicon

In collaboration with the group of Lieven Vandersypen, TU Delft, we demonstrate a two-fully programmable two-qubit quantum processor in a pair of tunnel-coupled Si/SiGe gate-defined quantum dots.


“A programmable two-qubit quantum processor in silicon.” T. F. Watson, S. G. J. Philips, E. Kawakami, D. R. Ward, P. Scarlino, M. Veldhorst, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, and L. M. K. Vandersypen, Nature 555, 633 (2018)

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