The Library
Fault-tolerant quantum metrology
Tools
Tools
Tools
Kapourniotis, Theodoros and Datta, Animesh (2019) Fault-tolerant quantum metrology. Physical Review A, 100 (2). 022335. doi:10.1103/physreva.100.022335 ISSN 1050-2947.
|
PDF
WRAP-Fault-tolerant-quantum-metrology-Datta-2019.pdf - Published Version - Requires a PDF viewer. Download (1692Kb) | Preview |
Official URL: https://doi.org/10.1103/physreva.100.022335
Abstract
We introduce the notion of fault-tolerant quantum metrology to overcome noise beyond our control, associated with sensing the parameter, by reducing the noise in operations under our control, associated with preparing and measuring probes and ancillae. To that end, we introduce noise thresholds to quantify the noise resilience of parameter estimation schemes. We demonstrate improved noise thresholds over the non-fault-tolerant schemes. We use quantum Reed-Muller codes to retrieve more information about a single phase parameter being estimated in the presence of full-rank Pauli noise. Using only error detection, as opposed to error correction, allows us to retrieve higher thresholds. We show that better devices, which can be engineered, can enable us to counter larger noise in the field beyond our control. Further improvements in fault-tolerant quantum metrology could be achieved by optimizing in tandem parameter-specific estimation schemes and transversal quantum error correcting codes.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Journal or Publication Title: | Physical Review A | ||||||
| Publisher: | American Physical Society | ||||||
| ISSN: | 1050-2947 | ||||||
| Official Date: | 27 August 2019 | ||||||
| Dates: |
|
||||||
| Volume: | 100 | ||||||
| Number: | 2 | ||||||
| Article Number: | 022335 | ||||||
| DOI: | 10.1103/physreva.100.022335 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Copyright Holders: | ©2019 American Physical Society | ||||||
| Date of first compliant deposit: | 18 October 2019 | ||||||
| Date of first compliant Open Access: | 21 October 2019 | ||||||
| RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
