4 papers · 1 filter
Parity Mapping for Quantum Optimization on Frustrated Ising Rings
Ruiyi Wang, Anita Weidinger, Glen Bigan Mbeng +2
The frustrated Ising ring is one of the simplest models exhibiting exponential closing spectral gaps, making it a paradigmatic and challenging benchmark for quantum annealing (QA).…
Performance of Parity QAOA for the Signed Max-Cut Problem
Anita Weidinger, Glen Bigan Mbeng, Michael Fellner +2
The practical implementation of quantum optimization algorithms on noisy intermediate-scale quantum devices requires accounting for their limited connectivity. As such, the Parity…
The quantum Ising chain for beginners
Glen Bigan Mbeng, Angelo Russomanno, Giuseppe E. Santoro
We present here various techniques to work with clean and disordered quantum Ising chains, for the benefit of students and non-experts. Starting from the Jordan-Wigner transformati…
Beyond Quantum Annealing: Optimal control solutions to MaxCut problems
Giovanni Pecci, Ruiyi Wang, Pietro Torta +2
Quantum Annealing (QA) relies on mixing two Hamiltonian terms, a simple driver and a complex problem Hamiltonian, in a linear combination. The time-dependent schedule for this mixi…