  Universal quantum information processing requires single-qubit rotations and
two-qubit interactions as minimal resources. A possible step beyond this
minimal scheme is the use of three-qubit interactions. We consider such
three-qubit interactions and show how they can reduce the time required for a
quantum state transfer in an XY spin chain. For the experimental
implementation, we use liquid-state nuclear magnetic resonance (NMR), where
three-qubit interactions can be implemented by sequences of radio-frequency
pulses.
