2–5 May 2023
ECT*
Europe/Rome timezone

Numerical approaches for non-adiabatic terms in quantum annealing

Not scheduled
20m
Aula Renzo Leonardi (ECT*)

Aula Renzo Leonardi

ECT*

Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
Poster

Speaker

Ewen Lawrence (University of Strathclyde)

Description

Adiabaticity can be used to improve accuracy and precision of many quantum control procedures such as quantum annealing, adiabatic quantum computing and ground state preparation. However, processes need to be implemented very slowly to achieve the adiabatic limit, lengthening control sequences and increasing the susceptibility of the system to decoherence. One approach to overcoming this problem is to apply counterdiabatic driving, which can be defined via a quantity known as the Adiabatic Gauge Potential (AGP). The AGP characterises the adiabaticity of a system, and in general is a difficult quantity to compute. We present a new approach to symbolically computing the AGP using commutation relations, which we apply to the Ising graph Hamiltonian class as an example. This new approach allows efficient computation of the AGP on larger graphs than were previously possible with other methods.

Abstract category Numerical Methods

Primary author

Ewen Lawrence (University of Strathclyde)

Co-authors

Mr Sebastian Schmid Ms Ieva Cepaite (University of Strathclyde) Dr Peter Kirton (University of Strathclyde) Dr Callum Duncan (University of Strathclyde)

Presentation materials

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