Coherent spin manipulation in an exchange-only qubit
E. A. Laird, Jacob Taylor, David P. DiVincenzo, C. M. Marcus, M. P. Hanson, A. C. Gossard
Initialization, manipulation and measurement of a three-spin qubit are demonstrated using a few- electron triple quantum dot, where all operations can be driven by tuning the exchange interaction. Multiplexed reﬂectometry, applied to two nearby charge sensors, allows for qubit readout. Deco- herence is found to be in reasonable agreement with predictions based on gate voltage noise with a uniform power spectrum. Requirements to achieve full multi-qubit control using only exchange and electrostatic interactions are outlined.
, Taylor, J.
, DiVincenzo, D.
, Marcus, C.
, Hanson, M.
and Gossard, A.
Coherent spin manipulation in an exchange-only qubit, Physical Review B, [online], https://doi.org/10.1103/PhysRevB.82.075403
(Accessed December 9, 2023)