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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]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
Work for Others (WFO)
OSTI Identifier:
931292
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review A; Journal Volume: 75
Country of Publication:
United States
Language:
English
Subject:
quantum information; teleportation; spontaneous parameteric down-conversion; entanglement

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. doi:10.1103/PhysRevA.75.022307.
Humble, Travis S, and Grice, Warren P. Mon . "Spectral Effects in Quantum Teleportation". United States. doi:10.1103/PhysRevA.75.022307.
@article{osti_931292,
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},
journal = {Physical Review A},
number = ,
volume = 75,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}