activity
20172023
most citedDisentangling Structural Information From Core-level Excitation Spectra

26 citations · 89 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.soft2023★ 6 cited

Information Bottleneck in Peptide Conformation Determination by X-ray Absorption Spectroscopy

Eemeli A. Eronen, Anton Vladyka, Florent Gerbon +2

We apply a recently developed technique utilizing machine learning for statistical analysis of computational nitrogen K-edge spectra of aqueous triglycine. This method, the emulato…

cond-mat.dis-nn2022★ 16 cited

Towards Structural Reconstruction from X-Ray Spectra

Anton Vladyka, Christoph J. Sahle, Johannes Niskanen

We report a statistical analysis of Ge K-edge X-ray emission spectra simulated for amorphous GeO at elevated pressures. We find that employing machine learning approaches we ca…

physics.chem-ph2021★ 12 cited

Emulator-based Decomposition for Structural Sensitivity of Core-level Spectra

Johannes Niskanen, Anton Vladyka, Joonas Niemi +1

We explore the sensitivity of several core-level spectroscopic methods to the underlying atomistic structure by using the water molecule as our test system. We first define a metri…

physics.chem-ph2021★ 11 cited

Machine learning in interpretation of electronic core-level spectra

Johannes Niskanen, Anton Vladyka, J. Antti Kettunen +1

Electronic transitions involving core-level orbitals offer a localized, atomic-site and element specific peek window into statistical systems such as molecular liquids. Although fo…

physics.atom-ph2020★ 18 cited

High-Precision Determination of Oxygen-K Transition Energy Excludes Incongruent Motion of Interstellar Oxygen

M. A. Leutenegger, S. Kühn, P. Micke +25

We demonstrate a widely applicable technique to absolutely calibrate the energy scale of x-ray spectra with experimentally well-known and accurately calculable transitions of highl…

cond-mat.soft2017★ 26 cited

Disentangling Structural Information From Core-level Excitation Spectra

Johannes Niskanen, Christoph J. Sahle, Keith Gilmore +3

Core-level spectra of liquids can be difficult to interpret due to the presence of a range of local environments. We present computational methods for investigating core-level spec…