Physics colloquium-“Quantum-Coherent Silicon Electronics”

Susan Coppersmith

University of New South Wales

Abstract: Silicon is an attractive materials platform for developing large-scale quantum computers because of its compatibility with classical silicon electronics and its potential for scalability.  This talk will discuss qubits made from quantum dots with multiple electrons in silicon/silicon-germanium heterostructures.  These qubits can be manipulated on nanosecond time scales, and their coherence can be extended greatly by appropriate manipulation protocols.  They can be tuned so that additional quantum resonances appear that can be driven coherently, which we show is consistent with effects arising form strong electron-electron interactions.  Thus, these multi-electron qubits are interesting both as building blocks for quantum computers and as testbeds for investigating strongly interacting electrons.

All lectures are via Zoom.
If you would like to be invited to attend the colloquium via Zoom, please contact Dan Adams (daadams@mines.edu) or Serena Eley (serenaeley@mines.edu) for the link.