Experimental quantum-state tomography of a solid-state qubit
Rippe, Lars LU ; Julsgaard, Brian LU ; Walther, Andreas LU
; Yan, Ying
LU
and Kröll, Stefan
LU
(2008)
In Physical Review A (Atomic, Molecular and Optical Physics)
77(2).
p.5-022307
- Abstract
- Quantum-state tomography is used to characterize the state of an ensemble based qubit implemented through two hyperfine levels in Pr3+ ions, doped into a Y2SiO5 crystal. We experimentally verify that single-qubit rotation errors due to inhomogeneities of the ensemble can be suppressed using the Roos-Molmer dark-state scheme [Roos and Molmer, Phys. Rev. A 69, 022321 (2004)] Fidelities above > 90%, presumably limited by excited state decoherence, were achieved. Although not explicitly taken care of in the Roos-Molmer scheme, it appears that also decoherence due to inhomogeneous broadening on the hyperfine transition is largely suppressed.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1185904
- author
- Rippe, Lars
LU
; Julsgaard, Brian
LU
; Walther, Andreas
LU
; Yan, Ying
LU
and Kröll, Stefan
LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 77
- issue
- 2
- pages
- 5 - 022307
- publisher
- American Physical Society
- external identifiers
-
- wos:000253763900034
- scopus:38949194143
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.77.022307
- language
- English
- LU publication?
- yes
- id
- 34c6943b-67ef-4f8a-b163-fd8fc7fa37d7 (old id 1185904)
- date added to LUP
- 2016-04-01 12:30:50
- date last changed
- 2024-11-06 14:45:51
@article{34c6943b-67ef-4f8a-b163-fd8fc7fa37d7,
abstract = {{Quantum-state tomography is used to characterize the state of an ensemble based qubit implemented through two hyperfine levels in Pr3+ ions, doped into a Y2SiO5 crystal. We experimentally verify that single-qubit rotation errors due to inhomogeneities of the ensemble can be suppressed using the Roos-Molmer dark-state scheme [Roos and Molmer, Phys. Rev. A 69, 022321 (2004)] Fidelities above > 90%, presumably limited by excited state decoherence, were achieved. Although not explicitly taken care of in the Roos-Molmer scheme, it appears that also decoherence due to inhomogeneous broadening on the hyperfine transition is largely suppressed.}},
author = {{Rippe, Lars and Julsgaard, Brian and Walther, Andreas and Yan, Ying and Kröll, Stefan}},
issn = {{1050-2947}},
language = {{eng}},
number = {{2}},
pages = {{5--022307}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Experimental quantum-state tomography of a solid-state qubit}},
url = {{http://dx.doi.org/10.1103/PhysRevA.77.022307}},
doi = {{10.1103/PhysRevA.77.022307}},
volume = {{77}},
year = {{2008}},
}