Andreas Ekström
Andreas works in theoretical nuclear physics and develops theories and models to analyze how the strong interaction determines the properties of atomic nuclei. The aim is to make reliable predictions of nuclear systems, ranging from light nuclei to dense nuclear matter, as part of the effort to understand the origin, structure, and stability of visible matter. The research is conducted at the interface of quantum mechanics, effective field theory, numerical methods, and Bayesian inference, with a particular focus on uncertainty quantification and predictive capability in modern nuclear-theory models. Andreas teaches at both undergraduate and graduate levels, including Subatomic Physics in the Engineering Physics program and Advanced Simulation and Machine Learning at the master’s level, and supervises master’s theses and PhD students in theoretical physics.
Showing 48 publications
Unexpected Rise in Nuclear Collectivity from Short-Range Physics
Multiscale Physics of Atomic Nuclei from First Principles
Perturbative χEFT calculations of the deuteron and triton up to N2LO
Breakdown scale of pionless effective field theory in the three-nucleon sector
Quantifying the breakdown scale of pionless effective field theory
Information and Statistics in Nuclear Experiment and Theory (ISNET)
Colloquium: Eigenvector continuation and projection-based emulators
The importance of few-nucleon forces in chiral effective field theory
What is ab initio in nuclear theory?
First observation of <sup>28</sup>O
Ab initio symmetry-adapted emulator for studying emergent collectivity and clustering in nuclei
Posterior predictive distributions of neutron-deuteron cross sections
Ab initio predictions link the neutron skin of Pb-208 to nuclear forces
Two-pion exchange as a leading-order contribution in chiral effective field theory
Wave-packet continuum discretisation for nucleon-nucleon scattering predictions
Nuclear Forces for Precision Nuclear Physics: A Collection of Perspectives
Bayesian predictions for A=6 nuclei using eigenvector continuation emulators
Power counting in chiral effective field theory and nuclear binding
Normal-ordering approximations and translational (non)invariance
Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32
Accurate bulk properties of nuclei from A=2 to infinity from potentials with Delta isobars
Strong Interactions for Precision Nuclear Physics
Analyzing the Nuclear Interaction: Challenges and New Ideas
A Statistical Analysis of the Nuclear Structure Uncertainties in μD
Improved many-body expansions from eigenvector continuation
Eigenvector continuation as an efficient and accurate emulator for uncertainty quantification
New ideas in constraining nuclear forces
Global Sensitivity Analysis of Bulk Properties of an Atomic Nucleus
Bayesian optimization in ab initio nuclear physics
Subatomic many-body physics simulations on a quantum frequency processor
Simulations of subatomic many-body physics on a quantum frequency processor
Pion-less effective field theory for atomic nuclei and lattice nuclei
The deuteron-radius puzzle is alive: A new analysis of nuclear structure uncertainties
Δ isobars and nuclear saturation
Effective-field-theory predictions of the muon-deuteron capture rate
Corrections to nucleon capture cross sections computed in truncated Hilbert spaces
Low-energy Coulomb excitation of Sr 96,98 beams
Uncertainty quantification for proton-proton fusion in chiral effective field theory
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Showing 4 research projects
Strong interactions for precision nuclear physics (PrecisionNuclei)