Please use this identifier to cite or link to this item:
https://www.um.edu.mt/library/oar/handle/123456789/99943
Title: | Dimensionality-enhanced quantum state transfer in long-range-interacting spin systems |
Authors: | Hermes, Samihr Apollaro, Tony John George Paganelli, Simone Macrì, Tommaso |
Keywords: | Quantum computing Quantum systems Electrical engineering Quantum computers Quantum physics |
Issue Date: | 2020 |
Publisher: | American Physical Society |
Citation: | Hermes, S., Apollaro, T. J., Paganelli, S., & Macri, T. (2020). Dimensionality-enhanced quantum state transfer in long-range-interacting spin systems. Physical Review A, 101(5), 053607. |
Abstract: | In this work we study the single-qubit quantum state transfer in uniform long-range spin X X Z 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. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/99943 |
Appears in Collections: | Scholarly Works - FacSciPhy |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Dimensionality-enhanced quantum state transfer in long-range-interacting spin systems.pdf Restricted Access | 1.13 MB | Adobe PDF | View/Open Request a copy |
Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.