244 citations · 505 across the 8 of their papers we have counts for
4 papers · 1 filter
Qubit quantum-dot sensors: noise cancellation by coherent backaction, initial slips, and elliptical precession
M. Hell, M. R. Wegewijs, D. P. DiVincenzo
We theoretically investigate the backaction of a sensor quantum dot with strong local Coulomb repulsion on the transient dynamics of a qubit that is probed capacitively. We show th…
Coherent Backaction of Quantum Dot Detectors: Qubit Isospin Precession
M. Hell, M. R. Wegewijs, D. P. DiVincenzo
A sensitive technique for the readout of the state of a qubit is based on the measurement of the conductance through a proximal sensor quantum dot (SQD). Here, we theoretically stu…
Self-Consistent Measurement and State Tomography of an Exchange-Only Spin Qubit
J. Medford, J. Beil, J. M. Taylor +7
We report initialization, complete electrical control, and single-shot readout of an exchange-only spin qubit. Full control via the exchange interaction is fast, yielding a demonst…
Spin-Orbit Coupling and Time-Reversal Symmetry in Quantum Gates
D. Stepanenko, N. E. Bonesteel, D. P. DiVincenzo +2
We study the effect of spin-orbit coupling on quantum gates produced by pulsing the exchange interaction between two single electron quantum dots. Spin-orbit coupling enters as a s…