Feedback-controlled adiabatic quantum computation
journal contributionposted on 05.04.2013, 11:19 by Richard D. Wilson, Alexandre ZagoskinAlexandre Zagoskin, Sergey SavelievSergey Saveliev, Mark EverittMark Everitt, Franco Nori
We propose a simple feedback-control scheme for adiabatic quantum computation with superconducting flux qubits. The proposed method makes use of existing on-chip hardware to monitor the ground-state curvature, which is then used to control the computation speed to maximize the success probability. We show that this scheme can provide a polynomial speed-up in performance and that it is possible to choose a suitable set of feedback-control parameters for an arbitrary problem Hamiltonian.