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Showing 2020 · quant-phShow all
3 papers · 2 filters
quant-ph2020★ 10 cited
KAM-Stability for Conserved Quantities in Finite-Dimensional Quantum Systems
Daniel Burgarth, Paolo Facchi, Hiromichi Nakazato +2
We show that for any finite-dimensional quantum systems the conserved quantities can be characterized by their robustness to small perturbations: for fragile symmetries small pertu…
quant-ph2020★ 15 cited
Eternal Adiabaticity
Daniel Burgarth, Paolo Facchi, Hiromichi Nakazato +2
We iteratively apply a recently formulated adiabatic theorem for the strong-coupling limit in finite-dimensional quantum systems. This allows us to improve approximations to a pert…
quant-ph2020★ 16 cited
Dzyaloshinskii-Moriya and dipole-dipole interactions affect coupling-based Landau-Majorana-Stückelberg-Zener transitions
Roberto Grimaudo, Hiromichi Nakazato, Antonino Messina +1
It has been theoretically demonstrated that two spins (qubits or qutrits), coupled by exchange interaction only, undergo a coupling-based joint Landau-Majorana-Stückelberg-Zener (L…