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Optimal quantum control with digitized Quantum Annealing
Glen Bigan Mbeng, Rosario Fazio, Giuseppe E. Santoro
We show how a digitized version of Quantum Annealing can be made optimal, realizing the best possible solution allowed by quantum mechanics in the shortest time, without any prior…
Optimal working point in digitized quantum annealing
Glen Bigan Mbeng, Luca Arceci, Giuseppe E. Santoro
We present a study of the digitized Quantum Annealing protocol proposed by R. Barends et al., Nature 534, 222 (2016). Our analysis, performed on the benchmark case of a transverse…
Localization, topology and quantized transport in disordered Floquet systems
Matteo M. Wauters, Angelo Russomanno, Roberta Citro +2
We investigate the transition induced by disorder in a periodically-driven one-dimensional model displaying quantized topological transport. We show that, while instantaneous eigen…
Superfluid to Mott transition in a Bose-Hubbard ring: Persistent currents and defect formation
Lucas Kohn, Pietro Silvi, Matthias Gerster +4
We revisit here the Kibble-Zurek mechanism for superfluid bosons slowly driven across the transition towards the Mott-insulating phase. By means of a combination of the Time-Depend…
Quantum Annealing: a journey through Digitalization, Control, and hybrid Quantum Variational schemes
Glen Bigan Mbeng, Rosario Fazio, Giuseppe Santoro
We establish and discuss a number of connections between a digitized version of Quantum Annealing (QA) with the Quantum Approximate Optimization Algorithm (QAOA) introduced by Farh…
Dissipation assisted Thouless pumping in the Rice-Mele model
Luca Arceci, Lucas Kohn, Angelo Russomanno +1
We investigate the effect of dissipation from a thermal environment on topological pumping in the periodically-driven Rice-Mele model. We report that dissipation can improve the ro…