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Extracting high fidelity quantum computer hardware from random systems

Walther, Andreas LU ; Julsgaard, Brian LU ; Rippe, Lars LU ; Yan, Ying LU ; Kröll, Stefan LU ; Fisher, R. and Glaser, S. (2009) 141st Nobel Symposium on Qubits for Future Quantum Information In Physica Scripta T137.
Abstract
An overview of current status and prospects of the development of quantum computer hardware based on inorganic crystals doped with rare-earth ions are presented. Major parts of the experimental work in this area have been done in two places, Canberra, Australia and Lund, Sweden, and the present description follows more closely the Lund work. Techniques will be described that include optimal filtering of the initially inhomogeneously broadened profile down to well separated and narrow ensembles, as well as the use of advanced pulse-shaping in order to achieve robust arbitrary single-qubit operations with fidelities above 90%, as characterized by quantum state tomography. It is expected that full scalability of these systems will require the... (More)
An overview of current status and prospects of the development of quantum computer hardware based on inorganic crystals doped with rare-earth ions are presented. Major parts of the experimental work in this area have been done in two places, Canberra, Australia and Lund, Sweden, and the present description follows more closely the Lund work. Techniques will be described that include optimal filtering of the initially inhomogeneously broadened profile down to well separated and narrow ensembles, as well as the use of advanced pulse-shaping in order to achieve robust arbitrary single-qubit operations with fidelities above 90%, as characterized by quantum state tomography. It is expected that full scalability of these systems will require the ability to determine the state of single rare-earth ions. It has been proposed that this can be done using special readout ions doped into the crystal and an update is given on the work to find and characterize such ions. Finally, a few aspects on possibilities for remote entanglement of ions in separate rare-earth-ion-doped crystals are considered. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Physica Scripta
volume
T137
publisher
IOP Publishing
conference name
141st Nobel Symposium on Qubits for Future Quantum Information
external identifiers
  • wos:000272834700010
  • scopus:77952874742
ISSN
1402-4896
0031-8949
DOI
10.1088/0031-8949/2009/T137/014009
language
English
LU publication?
yes
id
5cf05688-51e5-45c4-9f17-241b49e9fe7c (old id 1532217)
date added to LUP
2010-01-29 12:45:11
date last changed
2017-01-01 04:48:55
@inproceedings{5cf05688-51e5-45c4-9f17-241b49e9fe7c,
  abstract     = {An overview of current status and prospects of the development of quantum computer hardware based on inorganic crystals doped with rare-earth ions are presented. Major parts of the experimental work in this area have been done in two places, Canberra, Australia and Lund, Sweden, and the present description follows more closely the Lund work. Techniques will be described that include optimal filtering of the initially inhomogeneously broadened profile down to well separated and narrow ensembles, as well as the use of advanced pulse-shaping in order to achieve robust arbitrary single-qubit operations with fidelities above 90%, as characterized by quantum state tomography. It is expected that full scalability of these systems will require the ability to determine the state of single rare-earth ions. It has been proposed that this can be done using special readout ions doped into the crystal and an update is given on the work to find and characterize such ions. Finally, a few aspects on possibilities for remote entanglement of ions in separate rare-earth-ion-doped crystals are considered.},
  author       = {Walther, Andreas and Julsgaard, Brian and Rippe, Lars and Yan, Ying and Kröll, Stefan and Fisher, R. and Glaser, S.},
  booktitle    = {Physica Scripta},
  issn         = {1402-4896},
  language     = {eng},
  publisher    = {IOP Publishing},
  title        = {Extracting high fidelity quantum computer hardware from random systems},
  url          = {http://dx.doi.org/10.1088/0031-8949/2009/T137/014009},
  volume       = {T137},
  year         = {2009},
}