Scalable designs for quantum computing with rare-earth-ion-doped crystals
(2007) In Physical Review A (Atomic, Molecular and Optical Physics) 75(1).- Abstract
- Due to inhomogeneous broadening, the absorption lines of rare-earth-ion dopants in crystals are many order of magnitudes wider than the homogeneous linewidths. Several ways have been proposed to use ions with different inhomogeneous shifts as qubit registers, and to perform gate operations between such registers by means of the static dipole coupling between the ions. In this paper we show that in order to implement high-fidelity quantum gate operations by means of the static dipole interaction, we require the participating ions to be strongly coupled, and that the density of such strongly coupled registers in general scales poorly with register size. Although this is critical to previous proposals which rely on a high density of... (More)
- Due to inhomogeneous broadening, the absorption lines of rare-earth-ion dopants in crystals are many order of magnitudes wider than the homogeneous linewidths. Several ways have been proposed to use ions with different inhomogeneous shifts as qubit registers, and to perform gate operations between such registers by means of the static dipole coupling between the ions. In this paper we show that in order to implement high-fidelity quantum gate operations by means of the static dipole interaction, we require the participating ions to be strongly coupled, and that the density of such strongly coupled registers in general scales poorly with register size. Although this is critical to previous proposals which rely on a high density of functional registers, we describe architectures and preparation strategies that will allow scalable quantum computers based on rare-earth-ion-doped crystals. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/674965
- author
- Wesenberg, Janus H ; Molmer, Klaus ; Rippe, Lars LU and Kröll, Stefan LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 75
- issue
- 1
- publisher
- American Physical Society
- external identifiers
-
- wos:000243894100031
- scopus:33846349112
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.75.012304
- language
- English
- LU publication?
- yes
- id
- 18da8c43-ca11-4b49-8019-a4f169c3f761 (old id 674965)
- date added to LUP
- 2016-04-01 12:09:25
- date last changed
- 2022-04-21 03:15:01
@article{18da8c43-ca11-4b49-8019-a4f169c3f761,
abstract = {{Due to inhomogeneous broadening, the absorption lines of rare-earth-ion dopants in crystals are many order of magnitudes wider than the homogeneous linewidths. Several ways have been proposed to use ions with different inhomogeneous shifts as qubit registers, and to perform gate operations between such registers by means of the static dipole coupling between the ions. In this paper we show that in order to implement high-fidelity quantum gate operations by means of the static dipole interaction, we require the participating ions to be strongly coupled, and that the density of such strongly coupled registers in general scales poorly with register size. Although this is critical to previous proposals which rely on a high density of functional registers, we describe architectures and preparation strategies that will allow scalable quantum computers based on rare-earth-ion-doped crystals.}},
author = {{Wesenberg, Janus H and Molmer, Klaus and Rippe, Lars and Kröll, Stefan}},
issn = {{1050-2947}},
language = {{eng}},
number = {{1}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Scalable designs for quantum computing with rare-earth-ion-doped crystals}},
url = {{http://dx.doi.org/10.1103/PhysRevA.75.012304}},
doi = {{10.1103/PhysRevA.75.012304}},
volume = {{75}},
year = {{2007}},
}