Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot

J. R. Petta, A. C. Johnson, A. Yacoby, C. M. Marcus, M. P. Hanson, A. C. Gossard

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

A pulsed-gate technique with charge sensing is used to measure the singlet-triplet relaxation time for nearly degenerate spin states in a two-electron double quantum dot. Transitions from the (1,1) charge occupancy state to the (0,2) state, measured as a function of pulse cycle duration and magnetic field, allow the (1,1) singlet-triplet relaxation time (≥70μs) and the (0,2) singlet-triplet splitting to be measured. This technique can be readily applied to read out a spin-qubit operating in a singlet-triplet basis.

Original languageEnglish (US)
Article number161301
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number16
DOIs
StatePublished - Oct 15 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot'. Together they form a unique fingerprint.

Cite this