High-fidelity readout scheme for rare-earth solid-state quantum computing
Walther, Andreas LU ; Rippe, Lars LU ; Yan, Ying LU ; Karlsson, Jenny LU ; Serrano, Diana LU ; Nilsson, Adam LU ; Bengtsson, Samuel LU
and Kröll, Stefan
LU
(2015)
In Physical Review A (Atomic, Molecular and Optical Physics)
92(2).
- Abstract
- We propose and analyze a high-fidelity readout scheme for a single-instance approach to quantum computing in rare-earth-ion-doped crystals. The scheme is based on using different elements as qubit and readout ions, where the readout ions are doped into the material at a much lower concentration than the qubit ions. It is shown that by allowing the qubit ion sitting closest to a readout ion to act as a readout buffer, the readout error can be reduced by more than an order of magnitude. The scheme is shown to be robust against certain experimental variations, such as varying detection efficiencies, and we use the scheme to predict the attainable quantum fidelity of a controlled NOT (CNOT) gate in these solid-state systems. In addition, we... (More)
- We propose and analyze a high-fidelity readout scheme for a single-instance approach to quantum computing in rare-earth-ion-doped crystals. The scheme is based on using different elements as qubit and readout ions, where the readout ions are doped into the material at a much lower concentration than the qubit ions. It is shown that by allowing the qubit ion sitting closest to a readout ion to act as a readout buffer, the readout error can be reduced by more than an order of magnitude. The scheme is shown to be robust against certain experimental variations, such as varying detection efficiencies, and we use the scheme to predict the attainable quantum fidelity of a controlled NOT (CNOT) gate in these solid-state systems. In addition, we discuss the potential scalability of the protocol to larger qubit systems. The results are based on parameters which we believe are experimentally feasible with current technology and which can be simultaneously realized. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7975462
- author
- Walther, Andreas
LU
; Rippe, Lars
LU
; Yan, Ying
LU
; Karlsson, Jenny
LU
; Serrano, Diana
LU
; Nilsson, Adam
LU
; Bengtsson, Samuel
LU
and Kröll, Stefan
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 92
- issue
- 2
- article number
- 022319
- publisher
- American Physical Society
- external identifiers
-
- wos:000359342900004
- scopus:84939458368
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.92.022319
- language
- English
- LU publication?
- yes
- id
- 0353f5e4-64fa-46a1-b0be-a369da916421 (old id 7975462)
- date added to LUP
- 2016-04-01 10:09:32
- date last changed
- 2023-11-09 13:15:18
@article{0353f5e4-64fa-46a1-b0be-a369da916421,
abstract = {{We propose and analyze a high-fidelity readout scheme for a single-instance approach to quantum computing in rare-earth-ion-doped crystals. The scheme is based on using different elements as qubit and readout ions, where the readout ions are doped into the material at a much lower concentration than the qubit ions. It is shown that by allowing the qubit ion sitting closest to a readout ion to act as a readout buffer, the readout error can be reduced by more than an order of magnitude. The scheme is shown to be robust against certain experimental variations, such as varying detection efficiencies, and we use the scheme to predict the attainable quantum fidelity of a controlled NOT (CNOT) gate in these solid-state systems. In addition, we discuss the potential scalability of the protocol to larger qubit systems. The results are based on parameters which we believe are experimentally feasible with current technology and which can be simultaneously realized.}},
author = {{Walther, Andreas and Rippe, Lars and Yan, Ying and Karlsson, Jenny and Serrano, Diana and Nilsson, Adam and Bengtsson, Samuel and Kröll, Stefan}},
issn = {{1050-2947}},
language = {{eng}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{High-fidelity readout scheme for rare-earth solid-state quantum computing}},
url = {{http://dx.doi.org/10.1103/PhysRevA.92.022319}},
doi = {{10.1103/PhysRevA.92.022319}},
volume = {{92}},
year = {{2015}},
}