Measurement-based variational quantum eigensolver

RR Ferguson, L Dellantonio, AA Balushi, K Jansen… - Physical review …, 2021 - APS
RR Ferguson, L Dellantonio, AA Balushi, K Jansen, W Dür, CA Muschik
Physical review letters, 2021APS
Variational quantum eigensolvers (VQEs) combine classical optimization with efficient cost
function evaluations on quantum computers. We propose a new approach to VQEs using the
principles of measurement-based quantum computation. This strategy uses entangled
resource states and local measurements. We present two measurement-based VQE
schemes. The first introduces a new approach for constructing variational families. The
second provides a translation of circuit-to measurement-based schemes. Both schemes offer …
Variational quantum eigensolvers (VQEs) combine classical optimization with efficient cost function evaluations on quantum computers. We propose a new approach to VQEs using the principles of measurement-based quantum computation. This strategy uses entangled resource states and local measurements. We present two measurement-based VQE schemes. The first introduces a new approach for constructing variational families. The second provides a translation of circuit- to measurement-based schemes. Both schemes offer problem-specific advantages in terms of the required resources and coherence times.
American Physical Society
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