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Proceedings Paper

Photonic technology in quantum information challenges quantum limitation
Author(s): Songhao Liu; Jindong Wang; Changjun Liao
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Paper Abstract

Basic experiments for quantum information have demonstrated the important role that photons play in future practical quantum information system. Technical prospects of processing quantum information in quantum computing, quantum communication and quantum cryptography encourage researchers to develop advanced photonic devices with high precision. We recognized that the most essential is to develop component parts of every kind that can constitute a qualified quantum information system. By using these component parts with high precision, it is possible to decrease errors in a practical quantum information system. The errors come from interaction of quantum information with environment that appear as decoherence. In terms of the technical terminology, this kind of interaction is appeared in conventional characterization as loss of the devices that are responsible for the permutation between quantum information system and environment noise. Therefore we analyze several possible structures of the components and devices that should be considered in the design of the components and the devices for quantum information usage. The emitters should generate quantum eigen state that the quantum dot with specified shape is embedded in mode matched waveguide. The quantum bits should be encoded only by phase modulation without loss. The receiver should also be sensitive to the quantum state. Every step of the efforts challenges the quantum limitation and the technologies available.

Paper Details

Date Published: 26 November 2007
PDF: 12 pages
Proc. SPIE 6827, Quantum Optics, Optical Data Storage, and Advanced Microlithography, 68270F (26 November 2007); doi: 10.1117/12.756908
Show Author Affiliations
Songhao Liu, South China Normal Univ. (China)
Jindong Wang, South China Normal Univ. (China)
Changjun Liao, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 6827:
Quantum Optics, Optical Data Storage, and Advanced Microlithography
Chris A. Mack; Jinfeng Kang; Jun-en Yao; Guangcan Guo; Song-hao Liu; Osamu Hirota; Guofan Jin; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)

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