Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2009-10-14

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

Included Journals: Scopus、EI、SCIE

Volume: 42

Issue: 19

ISSN: 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.