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Title: Spectral effects in quantum teleportation

Abstract

We use a multimode description of polarization-encoded qubits to analyze the quantum teleportation protocol. Specifically, we investigate how the teleportation fidelity depends on the spectral correlations inherent to polarization-entangled photons generated by type-II spontaneous parametric down conversion. We find that the maximal obtainable fidelity depends on the spectral entanglement carried by the joint probability amplitude, a result which we quantify for the case of a joint spectrum approximated by a correlated Gaussian function. We contrast these results with a similar analysis of the visibility obtained in a polarization-correlation experiment.

Authors:
;  [1]
  1. Center for Engineering Science Advanced Research, Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6016 (United States)
Publication Date:
OSTI Identifier:
20982074
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.022307; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; CONVERSION; CORRELATIONS; GAUSS FUNCTION; OPTICS; PHOTONS; POLARIZATION; PROBABILITY; QUANTUM COMPUTERS; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; QUANTUM TELEPORTATION; QUBITS; SPECTRA

Citation Formats

Humble, Travis S, and Grice, Warren P. Spectral effects in quantum teleportation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.022307.
Humble, Travis S, & Grice, Warren P. Spectral effects in quantum teleportation. United States. https://doi.org/10.1103/PHYSREVA.75.022307
Humble, Travis S, and Grice, Warren P. 2007. "Spectral effects in quantum teleportation". United States. https://doi.org/10.1103/PHYSREVA.75.022307.
@article{osti_20982074,
title = {Spectral effects in quantum teleportation},
author = {Humble, Travis S and Grice, Warren P},
abstractNote = {We use a multimode description of polarization-encoded qubits to analyze the quantum teleportation protocol. Specifically, we investigate how the teleportation fidelity depends on the spectral correlations inherent to polarization-entangled photons generated by type-II spontaneous parametric down conversion. We find that the maximal obtainable fidelity depends on the spectral entanglement carried by the joint probability amplitude, a result which we quantify for the case of a joint spectrum approximated by a correlated Gaussian function. We contrast these results with a similar analysis of the visibility obtained in a polarization-correlation experiment.},
doi = {10.1103/PHYSREVA.75.022307},
url = {https://www.osti.gov/biblio/20982074}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}