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.
Cited by 1
Antti Vepsäläinen et al., Simulating Spin Chains Using a Superconducting Circuit: Gauge Invariance, Superadiabatic Transport, and Broken Time‐Reversal Symmetry
Adv Quantum Tech, 1900121 (2020) [Crossref]
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- 1 2 Koen Groenland
- 1 Centrum Wiskunde and Informatica [CWI]
- 2 Universiteit van Amsterdam / University of Amsterdam [UvA]