Speedup of quantum-state transfer by three-qubit interactions
Speedup of quantum-state transfer by three-qubit interactions
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DOI:
10.1103/physreva.73.062325
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发表时间:
2005-12
期刊:
影响因子:
--
通讯作者:
Jingfu Zhang;X. Peng;D. Suter
中科院分区:
文献类型:
--
作者:
Jingfu Zhang;X. Peng;D. Suter
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, where three-qubit interactions can be implemented by sequences of radio-frequency pulses.