NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Sequential Bayesian experiment design for adaptive Ramsey sequence measurements.
Published
Author(s)
Robert D. McMichael, Sergey Dushenko, Sean Blakley
Abstract
The Ramsey sequence is a canonical example of a quantum phase determination for a spin qubit, but when readout fidelity is low, as with NV centers, measurement efficiency can be increased by focusing measurement resources on the most productive settings. This paper proposes a sequential Bayesian experiment design protocol for the phase accumulation time and compares it to both a previously reported adaptive heuristic protocol and random setting choices. A work flow allowing measurements and design calculations to run concurrently largely eliminates computation time from measurement overhead. When precession frequency is the lone parameter to estimate, the Bayesian design is faster by factors of 2 and 4 relative to the adaptive heuristic and random protocols respectively.
McMichael, R.
, Dushenko, S.
and Blakley, S.
(2021),
Sequential Bayesian experiment design for adaptive Ramsey sequence measurements., Journal of Applied Physics, [online], https://doi.org/10.1063/5.0055630, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932411
(Accessed October 9, 2025)