The Eriksson Group in the Physics Department at the University of Wisconsin-Madison focuses on semiconductor quantum dot qubits, quantum computing and information, quantum measurement, nanostructure fabrication, thermal transport, semiconductor physics, and the interface between semiconducting and superconducting quantum science and technology.
Mark Eriksson earns WARF named professorship
Mark Eriksson has been named the John Bardeen Professor of Physics, through the Wisconsin Alumni Research Foundation (WARF) named professorship program. The WARF named professorship program provides recognition for distinguished research contributions of the UW–Madison faculty. The awards …
Professors Eriksson, McDermott, Vanderbrouke awarded UW2020s
Twelve projects have been chosen for Round 6 of the UW2020: WARF Discovery Initiative, including three from faculty in the Department of Physics (Mark Eriksson, Robert McDermott, and Justin Vandenbroucke). These projects were among 92 proposals …
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 …
Sam Neyens has graduated with his Ph.D. and has started his new position at Intel Quantum in Portland, Oregon.
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 …
Physics Today article describing quantum dot qubits
This article provides a broad overview of experimental developments in the area of quantum dot qubits. “Quantum computing with semiconductor spins.” L. M. K. Vandersypen and M. A. Eriksson, Physics Today 72, 38 (2019).
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 …
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.” …
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