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Designing gate operations for single-ion quantum computing in rare-earth-ion-doped crystals

Kinos, Adam LU ; Rippe, Lars LU ; Kröll, Stefan LU and Walther, Andreas LU (2021) In Physical Review A 104(5).
Abstract

Quantum computers based on rare-earth-ion-doped crystals show promising properties in terms of scalability and connectivity if single ions can be used as qubits. Through simulations, we investigate gate operations on such qubits. We discuss how gate and system parameters affect gate errors, the required frequency bandwidth per qubit, and the risk for instantaneous spectral diffusion (ISD). Furthermore, we examine how uncertainties in the system parameters affect the gate errors, and how precisely the system needs to be known. We find gate errors for arbitrary single-qubit gates of 2.1×10-4 when ISD is not considered and 3.4×10-4 when we take heed to minimize it. Additionally, we construct two-qubit gates with errors ranging from... (More)

Quantum computers based on rare-earth-ion-doped crystals show promising properties in terms of scalability and connectivity if single ions can be used as qubits. Through simulations, we investigate gate operations on such qubits. We discuss how gate and system parameters affect gate errors, the required frequency bandwidth per qubit, and the risk for instantaneous spectral diffusion (ISD). Furthermore, we examine how uncertainties in the system parameters affect the gate errors, and how precisely the system needs to be known. We find gate errors for arbitrary single-qubit gates of 2.1×10-4 when ISD is not considered and 3.4×10-4 when we take heed to minimize it. Additionally, we construct two-qubit gates with errors ranging from 5×10-4→3×10-3 over a broad range of dipole-dipole interaction strengths.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
104
issue
5
article number
052624
publisher
American Physical Society
external identifiers
  • scopus:85120525334
ISSN
2469-9926
DOI
10.1103/PhysRevA.104.052624
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 authors. Published by the American Physical Society.
id
dc5c0720-659d-491c-8e2c-baa1d0a17f04
date added to LUP
2022-01-26 09:43:32
date last changed
2023-11-09 03:27:32
@article{dc5c0720-659d-491c-8e2c-baa1d0a17f04,
  abstract     = {{<p>Quantum computers based on rare-earth-ion-doped crystals show promising properties in terms of scalability and connectivity if single ions can be used as qubits. Through simulations, we investigate gate operations on such qubits. We discuss how gate and system parameters affect gate errors, the required frequency bandwidth per qubit, and the risk for instantaneous spectral diffusion (ISD). Furthermore, we examine how uncertainties in the system parameters affect the gate errors, and how precisely the system needs to be known. We find gate errors for arbitrary single-qubit gates of 2.1×10-4 when ISD is not considered and 3.4×10-4 when we take heed to minimize it. Additionally, we construct two-qubit gates with errors ranging from 5×10-4→3×10-3 over a broad range of dipole-dipole interaction strengths.</p>}},
  author       = {{Kinos, Adam and Rippe, Lars and Kröll, Stefan and Walther, Andreas}},
  issn         = {{2469-9926}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review A}},
  title        = {{Designing gate operations for single-ion quantum computing in rare-earth-ion-doped crystals}},
  url          = {{http://dx.doi.org/10.1103/PhysRevA.104.052624}},
  doi          = {{10.1103/PhysRevA.104.052624}},
  volume       = {{104}},
  year         = {{2021}},
}