Concept
Helium atom
Related publications (32)
Modelling of metal alloys in realistic conditions with machine learning
Computer simulations based on statistical methods have emerged as a powerful tool for studying structure-property relationships at the atomistic level. However, to provide reliable insights into materials in realistic conditions, it is essential to accurat ...
EPFL2023Many-body physics with strongly interacting fermions coupled to light
This thesis reports on the realization of the first experiments conducted with superfluid, strongly interacting Fermi gases of 6Li coupled to the light field of an optical cavity. In the scope of existing ultracold atomic platforms, this is the first time ...
EPFL2023SPAHM: the spectrum of approximated Hamiltonian matrices representations
Ksenia Briling, Alberto Fabrizio
Physics-inspired molecular representations are the cornerstone of similarity-based learning applied to solve chemical problems. Despite their conceptual and mathematical diversity, this class of descriptors shares a common underlying philosophy: they all r ...
2022Ultrafast Resonant Interatomic Coulombic Decay Induced by Quantum Fluid Dynamics
Marcel Drabbels, Andrew Daniel Bonnar Clark, Verónica Oliver Álvarez de Lara, Daniela Rupp
Interatomic processes play a crucial role in weakly bound complexes exposed to ionizing radiation; therefore, gaining a thorough understanding of their efficiency is of fundamental importance. Here, we directly measure the timescale of interatomic Coulombi ...
2021Efficient implementation of atom-density representations
Michele Ceriotti, Till Junge, Guillaume André Jean Fraux, Félix Benedito Clément Musil, Michael John Willatt, Max David Veit, Alexander Jan Goscinski
Physically motivated and mathematically robust atom-centered representations of molecular structures are key to the success of modern atomistic machine learning. They lie at the foundation of a wide range of methods to predict the properties of both materi ...
2021Magnetic exchange interactions in monolayer CrI3 from many-body wavefunction calculations
Oleg Yazyev, Ravi Yadav, Michele Pizzochero
The marked interplay between the crystalline, electronic, and magnetic structure of atomically thin magnets has been regarded as the key feature for designing next-generation magneto-optoelectronic devices. In this respect, a detailed understanding of the ...
IOP PUBLISHING LTD2020Atomistic-continuum coupling of random alloys
William Curtin, Till Junge, Shankha Nag
Random alloys are multicomponent systems where the atomic type on each lattice site is independent of the atom types on any other lattice site. The fluctuations in local atomic configurations inherent to the random alloy prevents the accurate application o ...
IOP PUBLISHING LTD2019Atom-density representations for machine learning
Michele Ceriotti, Félix Benedito Clément Musil, Michael John Willatt
This has led to a proliferation of alternative ways to convert an atomic structure into an input for a machine-learning model. We introduce an abstract definition of chemical environments that is based on a smoothed atomic density, using a bra-ket notation ...
2019Properties of helium bubbles in covalent systems at the nanoscale: A combined numerical and experimental study
Cécile Hébert, Duncan Thomas Lindsay Alexander
The properties of nanometric-sized helium bubbles in silicon have been investigated using both spatially resolved electron-energy-loss spectroscopy combined with a recently developed method, and molecular-dynamics simulations. The experiments allowed for a ...
Amer Physical Soc2017Emergent magnetic anisotropy in the cubic heavy-fermion metal CeIn3
Metals containing cerium exhibit a diverse range of fascinating phenomena including heavy fermion behavior, quantum criticality, and novel states of matter such as unconventional superconductivity. The cubic system CeIn3 has attracted significant attention ...
2017