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Indexed by:期刊论文

Date of Publication:2009-10-14

Journal:JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Included Journals:SCIE、EI、Scopus

Volume:42

Issue:19

ISSN No.:0953-4075

Abstract: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.