Hamiltonian engineering with time-ordered evolution for unitary control of electron spins in semiconductor quantum dots
Abstract
We present a unitary control pulse design method for a scalable quantum computer architecture based on electron spins in lateral quantum dots. We employ simultaneous control of spin interactions and derive the functional forms of spin Hamiltonian parameter pulses for a universal set of 1- and 2-qubit logic gates. This includes selective spin rotations with the weak local g-factor variations in the presence of the global oscillating field, and a Control-Phase operation with the simultaneous control of g-factors and exchange couplings. We outline how to generalize the control scheme to multiqubit gate operations and the case of constrained or imperfect control of the Hamiltonian parameters.
Cite
@article{arxiv.2402.08146,
title = {Hamiltonian engineering with time-ordered evolution for unitary control of electron spins in semiconductor quantum dots},
author = {Bohdan Khromets and Zach D. Merino and Jonathan Baugh},
journal= {arXiv preprint arXiv:2402.08146},
year = {2024}
}
Comments
10 pages, 2 figures, 1 table. Submitted in proceedings of the VI Applied Mathematics, Modeling, and Computer Simulation (AMMCS) International Conference, Waterloo, Ontario, Canada