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EnglishIn this work we study the single-qubit quantum state transfer in uniform long-range spin XXZ systems in high-dimensional geometries. We consider prototypical long-range spin exchanges that are relevant for experiments in cold atomic platforms: Coulomb, dipolar, and van der Waals-like interactions. We find that in all these cases the fidelity increases with the dimensionality of the lattice. We also find a pronounced enhancement of the fidelity in one-dimensional lattices for increasing interaction range. This can be related to the emergence of a pair of bilocalized states on the sender and receiver site due to the onset of an effective weak-coupling Hamiltonian. Finally, we test our predictions in the presence of temperature-induced disorder introducing a model for the thermal displacement of the lattice sites, considered as a set of local adiabatic oscillators.
| Titolo: | Dimensionality-enhanced quantum state transfer in long-range-interacting spin systems |
| Autori: | |
| Data di pubblicazione: | 2020 |
| Rivista: | |
| Handle: | http://hdl.handle.net/11697/158260 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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