Noise-Resistant Control for a Spin Qubit Array

J. P. Kestner, Xin Wang, Lev S. Bishop, Edwin Barnes, and S. Das Sarma
Phys. Rev. Lett. 110, 140502 – Published 5 April 2013
PDFHTMLExport Citation

Abstract

We develop a systematic method of performing corrected gate operations on an array of exchange-coupled singlet-triplet qubits in the presence of both fluctuating nuclear Overhauser field gradients and charge noise. The single-qubit control sequences we present have a simple form, are relatively short, and form the building blocks of a corrected cnot gate when also implemented on the interqubit exchange link. This is a key step towards enabling large-scale quantum computation in a semiconductor-based architecture by facilitating error reduction below the quantum error correction threshold for both single-qubit and multiqubit gate operations.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 9 January 2013

DOI:https://doi.org/10.1103/PhysRevLett.110.140502

© 2013 American Physical Society

Authors & Affiliations

J. P. Kestner1,2, Xin Wang2, Lev S. Bishop2,3, Edwin Barnes2, and S. Das Sarma2,3

  • 1Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland 21250, USA
  • 2Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 3Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 110, Iss. 14 — 5 April 2013

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×