Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.77.062338
Title: Hyperfine-interaction-induced decoherence and deterministic teleportation of electrons in a quantum-dot nanostructure
Authors: Yu, S.
Zhu, Y.
Yeo, Y. 
Issue Date: 27-Jun-2008
Source: Yu, S., Zhu, Y., Yeo, Y. (2008-06-27). Hyperfine-interaction-induced decoherence and deterministic teleportation of electrons in a quantum-dot nanostructure. Physical Review A - Atomic, Molecular, and Optical Physics 77 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.77.062338
Abstract: Recently, de Visser and Blaauboer [Phys. Rev. Lett. 96, 246801 (2006)] proposed the most efficient deterministic teleportation protocol T for electron spins in a semiconductor nanostructure consisting of a single and a double quantum dot. However, it is as yet unknown if T can be completed before decoherence sets in. In this paper we analyze the detrimental effect of nuclear spin baths, the main source of decoherence, on T. We show that nonclassical teleportation fidelity can be achieved with T provided certain conditions are met. Our study indicates that realization of quantum computation with quantum dots is indeed promising. © 2008 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96856
ISSN: 10502947
DOI: 10.1103/PhysRevA.77.062338
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