Designing gate operations for single-ion quantum computing in rare-earth-ion-doped crystals
(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.
(Less)
- author
- Kinos, Adam
LU
; Rippe, Lars
LU
; Kröll, Stefan
LU
and Walther, Andreas
LU
- organization
- publishing date
- 2021-11-01
- 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
- 2024-12-01 18:36:46
@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}}, }