Nanoscale broadband transmission lines for spin qubit control

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • J. P. Dehollain
  • J. J. Pla
  • E. Siew
  • Kuan Tan

  • A. S. Dzurak
  • A. Morello

Research units

  • University of New South Wales

Abstract

The intense interest in spin-based quantum information processing has caused an increasing overlap between the two traditionally distinct disciplines of magnetic resonance and nanotechnology. In this work we discuss rigorous design guidelines to integrate microwave circuits with charge-sensitive nanostructures, and describe how to simulate such structures accurately and efficiently. We present a new design for an on-chip, broadband, nanoscale microwave line that optimizes the magnetic field used to drive a spin-based quantum bit (or qubit) while minimizing the disturbance to a nearby charge sensor. This new structure was successfully employed in a single-spin qubit experiment, and shows that the simulations accurately predict the magnetic field values even at frequencies as high as 30 GHz.

Details

Original languageEnglish
Article number015202
JournalNanotechnology
Volume24
Issue number1
Publication statusPublished - 11 Jan 2013
MoE publication typeA1 Journal article-refereed

ID: 4222886