activity
20142025
most citedEnergy of the Th nuclear clock transition

233 citations · 464 across the 18 of their papers we have counts for

collaborators

18 papers

physics.chem-ph2025

Natural-Orbital-Based Neural Network Configuration Interaction

Louis Thirion, Yorick L. A. Schmerwitz, Max Kroesbergen +5

Selective configuration interaction methods approximate correlated molecular ground- and excited states by considering only the most relevant Slater determinants in the expansion.…

physics.chem-ph2025

Orbital Optimization and Neural-Network-Assisted Configuration Interaction Calculations of Rydberg States

Gianluca Levi, Max Kroesbergen, Louis Thirion +5

Rydberg excited states of molecules pose a challenge for electronic structure calculations because of their highly diffuse electron distribution. Even large and elaborate atomic ba…

physics.atom-ph2025

A neural-network-based Python package for performing large-scale atomic CI using pCI and other high-performance atomic codes

Pavlo Bilous, Charles Cheung, Marianna Safronova

Modern atomic physics applications in science and technology pose ever higher demands on the precision of computations of properties of atoms and ions. Especially challenging is th…

quant-ph2024★ 10 cited

Preparing Schrödinger cat states in a microwave cavity using a neural network

Hector Hutin, Pavlo Bilous, Chengzhi Ye +8

Scaling up quantum computing devices requires solving ever more complex quantum control tasks. Machine learning has been proposed as a promising approach to tackle the resulting ch…

physics.comp-ph2024★ 4 cited

SOLAX: A Python solver for fermionic quantum systems with neural network support

Louis Thirion, Philipp Hansmann, Pavlo Bilous

Numerical modeling of fermionic many-body quantum systems presents similar challenges across various research domains, necessitating universal tools, including state-of-the-art mac…

physics.atom-ph2024

A neural network approach to running high-precision atomic computations

Pavlo Bilous, Charles Cheung, Marianna Safronova

Modern applications of atomic physics, including the determination of frequency standards, and the analysis of astrophysical spectra, require prediction of atomic properties with e…

physics.chem-ph2024★ 2 cited

A Neural-Network-Based Selective Configuration Interaction Approach to Molecular Electronic Structure

Yorick L. A. Schmerwitz, Louis Thirion, Gianluca Levi +4

By combining Hartree-Fock with a neural-network-supported quantum-cluster solver proposed recently in the context of solid-state lattice models, we formulate a scheme for selective…

cond-mat.str-el2024★ 8 cited

Neural-network-supported basis optimizer for the configuration interaction problem in quantum many-body clusters: Feasibility study and numerical proof

Pavlo Bilous, Louis Thirion, Henri Menke +3

A deep-learning approach to optimize the selection of Slater determinants in configuration interaction calculations for condensed-matter quantum many-body systems is developed. We…

physics.atom-ph2022

Theory of Laser-Assisted Nuclear Excitation by Electron Capture

Pavlo Bilous

The interplay of x-ray ionization and atomic and nuclear degrees of freedom is investigated theoretically in the process of laser-assisted nuclear excitation by electron capture. I…

physics.atom-ph2022★ 21 cited

Deep-learning approach for the atomic configuration interaction problem on large basis sets

Pavlo Bilous, Adriana Pálffy, Florian Marquardt

High-precision atomic structure calculations require accurate modelling of electronic correlations typically addressed via the configuration interaction (CI) problem on a multiconf…

physics.atom-ph2021★ 17 cited

Driven electronic bridge processes via defect states in Th-doped crystals

Brenden S. Nickerson, Martin Pimon, Pavlo V. Bilous +7

The electronic defect states resulting from doping Th in CaF offer a unique opportunity to excite the nuclear isomeric state Th at approximately 8 eV via elect…

physics.atom-ph2020★ 56 cited

Electronic bridge excitation in highly charged Th-229 ions

Pavlo V. Bilous, Hendrik Bekker, Julian Berengut +6

The excitation of the 8 eV Th isomer through the electronic bridge mechanism in highly charged ions is investigated theoretically. By exploiting the rich level scheme of o…

nucl-th2020★ 36 cited

The theory of direct laser excitation of nuclear transitions

Lars von der Wense, Pavlo V. Bilous, Benedict Seiferle +5

A comprehensive theoretical study of direct laser excitation of a nuclear state based on the density matrix formalism is presented. The nuclear clock isomer Th is d…

nucl-ex2019★ 233 cited

Energy of the Th nuclear clock transition

Benedict Seiferle, Lars von der Wense, Pavlo V. Bilous +8

The first nuclear excited state of Th offers the unique opportunity for laser-based optical control of a nucleus. Its exceptional properties allow for the development of a…

nucl-th2018★ 27 cited

The electric quadrupole channel of the 7.8 eV transition

Pavlo V. Bilous, Nikolay Minkov, Adriana Pálffy

The unique isomeric transition at 7.8 eV in has a magnetic dipole () and an electric quadrupole () multipole mixing. So far, the component has bee…

physics.atom-ph2017★ 29 cited

Laser-induced electronic bridge for characterization of the nuclear transition with a tunable optical laser

Pavlo V. Bilous, Ekkehard Peik, Adriana Pálffy

An alternative method to determine the excitation energy of the isomer via the laser-induced electronic bridge is investigated theoretically. In the presence…

physics.atom-ph2016★ 21 cited

Internal conversion from excited electronic states of ions

Pavlo V. Bilous, Georgy A. Kazakov, Iain D. Moore +2

The process of internal conversion from excited electronic states is investigated theoretically for the case of the vacuum-ultraviolet nuclear transition of . D…

physics.atom-ph2014

Analysis of Parasitic Signals in the Method of Recoil Nuclei Applied to Direct Observation of the Th-229m Isomeric State

Pavlo Bilous, Leonid Yatsenko

We carry out necessary theoretical justifications for the method of recoil nuclei in application to direct observation of the Th-229m isomeric state. We consider Cherenkov radiatio…