4.7 Article

Inferring potential landscapes from noisy trajectories of particles within an optical feedback trap

Journal

ISCIENCE
Volume 25, Issue 9, Pages -

Publisher

CELL PRESS
DOI: 10.1016/j.isci.2022.104731

Keywords

-

Funding

  1. Foundational Questions Institute Fund
  2. Silicon Valley Community Foundation [FQXi-IAF19-02]
  3. NIH [R01GM134426, R01GM130745]
  4. NSF [1719537]

Ask authors/readers for more resources

This study introduces a new Bayesian method for inferring potentials from trajectories corrupted by Markovian measurement noise without assuming prior functional form on the potentials. By introducing structured kernel interpolation priors, this method can be extended to the analysis of large datasets.
While particle trajectories encode information on their governing potentials, potentials can be challenging to robustly extract from trajectories. Measurement errors may corrupt a particle's position, and sparse sampling of the potential limits data in higher energy regions such as barriers. We develop a Bayesian method to infer potentials from trajectories corrupted by Markovian measurement noise without assuming prior functional form on the potentials. As an alternative to Gaussian process priors over potentials, we introduce structured kernel interpolation to the Natural Sciences which allows us to extend our analysis to large datasets. Structured-Kernel-Interpolation Priors for Potential Energy Reconstruction (SKIPPER) is validated on 1D and 2D experimental trajectories for particles in a feedback trap.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available