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Title: Robust implementations of quantum repeaters

Abstract

We show how to efficiently exploit decoherence free subspaces (DFSs), which are immune to collective noise, for realizing quantum repeaters with long-lived quantum memories. Our setup consists of an assembly of simple modules and we show how to implement them in systems of cold, neutral atoms in arrays of dipole traps. We develop methods for realizing robust gate operations on qubits encoded in a DFS using collisional interactions between the atoms. We also give a detailed analysis of the performance and stability of all required gate operations and emphasize that all modules can be realized with current or near future experimental technology.

Authors:
; ; ;  [1]
  1. Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom)
Publication Date:
OSTI Identifier:
20786677
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.73.012332; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; DIPOLES; GATING CIRCUITS; NOISE; PERFORMANCE; QUANTUM CRYPTOGRAPHY; QUBITS; SECRECY PROTECTION; STABILITY; TRAPS

Citation Formats

Klein, Alexander, Dorner, Uwe, Alves, Carolina Moura, and Jaksch, Dieter. Robust implementations of quantum repeaters. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Klein, Alexander, Dorner, Uwe, Alves, Carolina Moura, & Jaksch, Dieter. Robust implementations of quantum repeaters. United States. doi:10.1103/PHYSREVA.73.0.
Klein, Alexander, Dorner, Uwe, Alves, Carolina Moura, and Jaksch, Dieter. Sun . "Robust implementations of quantum repeaters". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786677,
title = {Robust implementations of quantum repeaters},
author = {Klein, Alexander and Dorner, Uwe and Alves, Carolina Moura and Jaksch, Dieter},
abstractNote = {We show how to efficiently exploit decoherence free subspaces (DFSs), which are immune to collective noise, for realizing quantum repeaters with long-lived quantum memories. Our setup consists of an assembly of simple modules and we show how to implement them in systems of cold, neutral atoms in arrays of dipole traps. We develop methods for realizing robust gate operations on qubits encoded in a DFS using collisional interactions between the atoms. We also give a detailed analysis of the performance and stability of all required gate operations and emphasize that all modules can be realized with current or near future experimental technology.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}