Adiabatic state distribution using anti-ferromagnetic spin systems

Open Access
Authors
Publication date 01-2019
Journal SciPost Physics
Article number 011
Volume | Issue number 6 | 1
Number of pages 17
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for Theoretical Physics Amsterdam (ITFA)
  • Interfacultary Research - Institute for Logic, Language and Computation (ILLC)
  • Faculty of Science (FNWI) - Institute of Physics (IoP)
Abstract Transporting quantum information is an important prerequisite for quantum computers. We study how this can be done in Heisenberg-coupled spin networks using adiabatic control over the coupling strengths. We find that qudits can be transferred and entangled pairs can be created between distant sites of bipartite graphs with a certain balance between the maximum spin of both parts, extending previous results that were limited to linear chains. The transfer fidelity in a small star-shaped network is numerically analysed, and possible experimental implementations are discussed.
Document type Article
Language English
Published at https://doi.org/10.21468/SciPostPhys.6.1.011
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