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论文类型：期刊论文

第一作者：Pei, P.

通讯作者：Pei, P (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China.

合写作者：Li, C.,Jin, J-S,Song, H-S

发表时间：2009-10-14

发表刊物：JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：42

期号：19

ISSN号：0953-4075

摘要：We propose a deterministic teleportation protocol of electrons in an array of three quantum-dot molecules. The qubit operations are implemented by sequences of stimulated Raman adiabatic passage (STIRAP) pulses. We show the significant efficiency of the protocol: only one c-NOT gate plus one Hadamard gate is required for the basis transformation, and one single-spin rotation for the reconstruction procedure. Picosecond-scale pulses allow for ultra-short total duration of the protocol, which is far less than the lifetime of electron spin. After only similar to 5% of the spin-decoherence time the teleportation process can be completed, which implies a high teleportation fidelity.