144 citations · 233 across the 2 of their papers we have counts for
7 papers · 1 filter
Conditional operation of a spin qubit
I. van Weperen, B. D. Armstrong, E. A. Laird +4
We report coherent operation of a singlet-triplet qubit controlled by the arrangement of two electrons in an adjacent double quantum dot. The system we investigate consists of two…
Dynamic Nuclear Polarization with Single Electron Spins
J. R. Petta, J. M. Taylor, A. C. Johnson +5
We polarize nuclear spins in a GaAs double quantum dot by controlling two-electron spin states near the anti-crossing of the singlet (S) and m_S=+1 triplet (T+) using pulsed gates.…
Effect of Exchange Interaction on Spin Dephasing in a Double Quantum Dot
E. A. Laird, J. R. Petta, A. C. Johnson +4
We measure singlet-triplet dephasing in a two-electron double quantum dot in the presence of an exchange interaction which can be electrically tuned from much smaller to much large…
Solid-state circuit for spin entanglement generation and purification
J. M. Taylor, W. Dür, P. Zoller +3
We show how realistic charge manipulation and measurement techniques, combined with the exchange interaction, allow for the robust generation and purification of four-particle spin…
Singlet-triplet spin blockade and charge sensing in a few-electron double quantum dot
A. C. Johnson, J. R. Petta, C. M. Marcus +2
Singlet-triplet spin blockade in a few-electron lateral double quantum dot is investigated using simultaneous transport and charge-sensing measurements. Transport from the (1,1) to…
Cotunneling Spectroscopy in Few-Electron Quantum Dots
D. M. Zumbuhl, C. M. Marcus, M. P. Hanson +1
Few-electron quantum dots are investigated in the regime of strong tunneling to the leads. Inelastic cotunneling is used to measure the two-electron singlet-triplet splitting above…