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Title: Quantum dot as a resource for teleportation and state swapping
Authors: Choo, K.W.
Kwek, L.C. 
Issue Date: 14-May-2007
Citation: Choo, K.W., Kwek, L.C. (2007-05-14). Quantum dot as a resource for teleportation and state swapping. Physical Review B - Condensed Matter and Materials Physics 75 (20) : -. ScholarBank@NUS Repository.
Abstract: We studied the use of quantum dots as a resource for teleportation and investigated how entanglement of the resource would affect the average fidelity of such a process. We then identified a suitable magnetic field, interdot distance, and the temperature to be used to achieve an average fidelity beyond the limit of the classical communication channel. We also explored the effects of decoherence on the teleportation process. We then investigated the state transfer or swapping between two quantum dots. We found that perfect quantum swap is possible in this system. A smaller magnetic field and interdot distance shortened the perfect state transfer time. Finally, we report on the performance of the system under different decoherence models. © 2007 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.75.205321
Appears in Collections:Staff Publications

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