Abstract

Quantum computation with large numbers of qubits is often envisioned to be facilitated by the division of one large register into several smaller units. The efficient information processing then relies on a coherent transfer of qubits between these units. Chains of spin-1/2-particles possessing nearest-neighbor interactions have been proposed as a platform for perfect transfer [1]. In theory, promising models exist for both time-dependent as well as time-independent ferromagnetic interactions. Time-dependent models require external control operations which are challenging to realise in a spin setting and make the system prone to external noise.

© 2013 IEEE