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Jülich Quantum Computing Seminar:

Hannes Lagemann, JSC

Online Talk

18.01.2022 14:00 Uhr

Real-time simulations of the quantum approximate optimisation algorithm with a circuit Hamiltonian model


The quantum approximate optimisation algorithm (or QAOA) is a variational algorithm. The algorithm consists of two parts. A quantum step which evaluates a cost function and a classical step which performs the optimisation. The hope is that the classical optimisation step can mitigate errors which appear in state-of-the-art quantum processors.

We investigate this idea by simulating the time evolution of superconducting quantum processors with two and three qubits. The model which generates the dynamics of the system is a lumped-element circuit Hamiltonian model. We find that in this model the classical optimisation step can mitigate some of the gate errors which are caused by imperfect two-qubit gates.

Access details

The "Jülich Quantum Computing Seminar" will take place every fortnight on Tuesdays at 14:00 CET via video conference and is intended to promote cooperation between the working groups conducting research in the field of quantum computing and quantum information at various institutes at Forschungszentrum Jülich.

Here is the access data for all the seminars:

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Meeting ID: 813 1452 6642
Passcode: 01


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