Suter, DieterZhang, JingfuPeng, Xinhua2008-06-022008-06-022006-06-19Zhang, J.; Peng, X.; Suter, D.: Speedup of quantum-state transfer by three-qubit interactions : Implementation by nuclear magnetic resonance. In: Physical Review A Jg. 73(2006), 062325.http://hdl.handle.net/2003/25393http://dx.doi.org/10.17877/DE290R-2669Universal 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, where three-qubit interactions can be implemented by sequences of radio-frequency pulses.en©2006 The American Physical Society530Text10.1103/PhysRevA.73.062325http://dx.doi.org/10.1103/PhysRevA.73.062325