294 citations · 1.2k across the 15 of their papers we have counts for
8 papers · 1 filter
Effects of charge noise on a pulse-gated singlet-triplet qubit
Zhenyi Qi, X. Wu, D. R. Ward +11
We study the dynamics of a pulse-gated semiconductor double quantum dot qubit. In our experiments, the qubit coherence times are relatively long, but the visibility of the quantum…
Two-axis control of a singlet-triplet qubit with an integrated micromagnet
Xian Wu, D. R. Ward, J. R. Prance +9
The qubit is the fundamental building block of a quantum computer. We fabricate a qubit in a silicon double quantum dot with an integrated micromagnet in which the qubit basis stat…
Quantum control and process tomography of a semiconductor quantum dot hybrid qubit
Dohun Kim, Zhan Shi, C. B. Simmons +9
The similarities between gated quantum dots and the transistors in modern microelectronics - in fabrication methods, physical structure, and voltage scales for manipulation - have…
Fast coherent manipulation of three-electron states in a double quantum dot
Zhan Shi, C. B. Simmons, Daniel R. Ward +9
A fundamental goal in the manipulation of quantum systems is the achievement of many coherent oscillations within the characteristic dephasing time T2*[1]. Most manipulations of el…
Coherent Quantum Oscillations in a Silicon Charge Qubit
Zhan Shi, C. B. Simmons, Daniel. R. Ward +10
Fast quantum oscillations of a charge qubit in a double quantum dot fabricated in a Si/SiGe heterostructure are demonstrated and characterized experimentally. The measured inhomoge…
Single-shot measurement of triplet-singlet relaxation in a Si/SiGe double quantum dot
J. R. Prance, Zhan Shi, C. B. Simmons +8
We investigate the lifetime of two-electron spin states in a few-electron Si/SiGe double dot. At the transition between the (1,1) and (0,2) charge occupations, Pauli spin blockade…
Tunable singlet-triplet splitting in a few-electron Si/SiGe quantum dot
Zhan Shi, C. B. Simmons, J. R. Prance +6
We measure the excited-state spectrum of a Si/SiGe quantum dot as a function of in-plane magnetic field, and we identify the spin of the lowest three eigenstates in an effective tw…
Tunable spin-selective loading of a silicon spin qubit
C. B. Simmons, J. R. Prance, B. J. Van Bael +8
The remarkable properties of silicon have made it the central material for the fabrication of current microelectronic devices. Silicon's fundamental properties also make it an attr…