qute.202000027.pdf (1.42 MB)
Efficient qubit routing for a globally connected trapped ion quantum computer
Version 2 2023-06-07, 08:51
Version 1 2023-06-07, 07:27
journal contribution
posted on 2023-06-07, 08:51 authored by Mark Webber, Steven Herbert, Sebastian WeidtSebastian Weidt, Winfried HensingerWinfried HensingerThe cost of enabling connectivity in noisy intermediate-scale quantum (NISQ) devices is an important factor in determining computational power. A qubit routing algorithm is created, which enables efficient global connectivity in a previously proposed trapped ion quantum computing architecture. The routing algorithm is characterized by comparison against both a strict lower bound, and a positional swap based routing algorithm. An error model is proposed, which can be used to estimate the achievable circuit depth and quantum volume of the device as a function of experimental parameters. A new metric based on quantum volume, but with native two-qubit gates, is used to assess the cost of connectivity relative to the upper bound of free, all to all connectivity. The metric is also used to assess a square-grid superconducting device. These two architectures are compared and it is found that for the shuttling parameters used, the trapped ion design has a substantially lower cost associated with connectivity.
History
Publication status
- Published
File Version
- Published version
Journal
Advanced Quantum TechnologiesISSN
2511-9044Publisher
WileyExternal DOI
Page range
1-11Article number
a2000027Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2020-07-08First Open Access (FOA) Date
2020-07-08First Compliant Deposit (FCD) Date
2020-07-07Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC