Twins in rotational spectroscopy: Does a rotational spectrum uniquely identify a molecule?Rotational spectroscopy is the most accurate method for determining structures of molecules in the gas phase. It is often assumed that a rotational spectrum is a unique "fingerprint" of a molecule.…Marcus Schwarting, Nathan A. Seifert, Michael J. Davis et al.·Apr 5, 2024SaveLearn
Lightweight Geometric Deep Learning for Molecular Modelling in Catalyst DiscoveryNew technology for energy storage is necessary for the large-scale adoption of renewable energy sources like wind and solar. The ability to discover suitable catalysts is crucial for making energy…Patrick Geitner·Apr 5, 2024SaveLearn
Photochemistry upon charge separation in triphenylamine derivatives from fs to μsQuantum chemical methods and time-resolved laser spectroscopy are employed to elucidate ultrafast charge separation processes in triphenylamine (TPA) derivatives upon photoexcitation. When changing…Hendrik J. Brockmann, Letao Huang, Felix Hainer et al.·Apr 4, 2024SaveLearn
Rare Event Sampling using Smooth Basin ClassificationThe efficiency of atomic simulations of materials and molecules can rapidly deteriorate when large free energy barriers exist between local minima. We propose smooth basin classification, a universal…Sander Vandenhaute, Tom Braeckevelt, Pieter Dobbelaere et al.·Apr 4, 2024SaveLearn
Multi-mode masers of thermally polarized nuclear spins in solution NMRWe present experimental single and multimode sustained 1H NMR masers in solution on thermally polarized spins at room temperature and 9.4 T achieved through the electronic control of radiation…Vineeth Francis Thalakottoor Jose Chacko, Alain Louis-Joseph, Daniel Abergel·Apr 4, 2024SaveLearn
Nonequilibrium properties of autocatalytic networksAutocatalysis, the ability of a chemical system to make more of itself, is a crucial feature in metabolism and is speculated to have played a decisive role in the origin of life. Nevertheless, how…Armand Despons·Apr 4, 2024SaveLearn
Performant Automatic Differentiation of Local Coupled Cluster Theories: Response Properties and Ab Initio Molecular DynamicsIn this work, we introduce a differentiable implementation of the local natural orbital coupled cluster (LNOCC) method within the automatic differentiation framework of the PySCFAD package. The…Xing Zhang, Chenghan Li, Hong-Zhou Ye et al.·Apr 4, 2024SaveLearn
Selecting High-Dimensional Representations of Physical Systems by Reweighted Diffusion MapsConstructing reduced representations of high-dimensional systems is a fundamental problem in physical chemistry. Many unsupervised machine learning methods can automatically find such low-dimensional…Jakub Rydzewski·Apr 3, 2024SaveLearn
A coarse-grained description of anharmonic lattice environments affecting the quantum dynamics of charge carriersLattice softness has a significant impact on charge carrier dynamics in condensed matter systems, contributing to the emergence of various properties and functions. Examples include the remarkable…Kuniyuki Miwa, Souichi Sakamoto, Ken Funo et al.·Apr 3, 2024SaveLearn
Spectral Map: Embedding Slow Kinetics in Collective VariablesThe dynamics of physical systems that require high-dimensional representation can often be captured in a few meaningful degrees of freedom called collective variables (CVs). However, identifying CVs…Jakub Rydzewski·Apr 2, 2024SaveLearn
Efficient configuration-interaction models for photoionization of molecular dimersWe present R-matrix calculations of photoionization of molecular monomers and dimers, focusing on ammonia (NH3) and formic acid (HCOOH), utilizing configuration-interaction models including the…Julio C Ruivo, Thomas Meltzer, Alex G Harvey et al.·Apr 1, 2024SaveLearn
Reaction Rate Theory for Electric Field Catalysis in SolutionThe application of an external, oriented electric field has emerged as an attractive technique for manipulating chemical reactions. Because most applications occur in solution, a theory of electric…Sohang Kundu, Timothy C. Berkelbach·Apr 1, 2024SaveLearn
Methane and oxygen from energy-efficient, low temperature in situ resource utilization enables missions to MarsNASA mandate is a human mission to Mars in the 2030s and sustained exploration of Mars requires in-situ resource utilization (ISRU). Exploiting the Martian water cycle (alongside perchlorate salts…M. Shahid, B. Chambers, S. Sankarasubramanian·Mar 31, 2024SaveLearn
Effect of cathode porosity on the Lithium air cell oxygen reduction reactionThe kinetics of the oxygen reduction reaction (ORR) on the practical air cathode in a Lithium air cell, which is conventionally composed of porous carbon with or without catalysts supported on it,…Jeongwook Seo, Shrihari Sankarasubramanian, Nikhilendra Singh et al.·Mar 31, 2024SaveLearn
Approximation of the electronic terms of diatomic molecules by the Morse function. The role of anharmonicity. II. Simple termsThis article continues the series of works by the authors on the approximation of the electronic terms of diatomic molecules by the Morse formula, which is the simplest anharmonic approximation of…G. S. Denisov, R. E. Asfin·Mar 30, 2024SaveLearn
Electrical double layer and capacitance of TiO2 electrolyte interfaces from first principles simulationsThe electrical double layer (EDL) at aqueous solution-metal oxide interfaces critically affects many fundamental processes in electrochemistry, geology and biology, yet understanding its microscopic…Chunyi Zhang, Marcos Calegari Andrade, Zachary K. Goldsmith et al.·Mar 29, 2024SaveLearn
A theoretical study on the mechanisms of formation of primal carbon clusters and nanoparticles in spaceWe present a computational study of assembling carbon clusters and nanophases in space from carbon aggregations. Geometry optimizations and Density-functional-based tight-binding (SCC-DFTB) dynamics…Dobromir A. Kalchevski, Dimitar V. Trifonov, Stefan K. Kolev et al.·Mar 29, 2024SaveLearn
Predissociation dynamics of the hydroxyl radical (OH) based on a five-state spectroscopic modelMulti-reference configuration interaction (MRCI) potential energy curves (PECs) and spin-orbit couplings for the X 2, A 2 +, 1 2 -, 1 4 -, and 1 4 states of…Georgi B. Mitev, Jonathan Tennyson, Sergey N. Yurchenko·Mar 28, 2024SaveLearn
Reference Energies for Double Excitations: Improvement and ExtensionIn the realm of photochemistry, the significance of double excitations (also known as doubly-excited states), where two electrons are concurrently elevated to higher energy levels, lies in their…Fábris Kossoski, Martial Boggio-Pasqua, Pierre-François Loos et al.·Mar 28, 2024SaveLearn
Coherent control from quantum committment probabilitiesWe introduce a general definition of a quantum committor in order to clarify reaction mechanisms and facilitate control in processes where coherent effects are important. With a quantum committor, we…Michelle C. Anderson, Amro Dodin, Thomas P. Fay et al.·Mar 28, 2024SaveLearn
Calculation of DC Stark Resonances for the Ammonia MoleculeA model potential previously developed for the ammonia molecule is treated in a single-center partial-wave approximation in analogy with a self-consistent field method developed by Moccia. The latter…Patrik Pirkola, Marko Horbatsch·Mar 28, 2024SaveLearn
Theoretical analysis of chemical reactions using a variational quantum eigensolver method without specifying molecular chargeQuantum chemical calculations have attracted much attention as a practical application of quantum computing. Quantum computers can prepare superpositions of electronic states with various numbers of…Soichi Shirai, Takahiro Horiba, Hirotoshi Hirai·Mar 28, 2024SaveLearn
The role of chemo-mechanical modelling in the development of battery technology -- a perspectiveIn the race to reduce global CO2 emissions and achieve net-zero, chemomechanics must play a critical role in the technological development of current and next-generation batteries to improve their…A. Boyce, E. Martínez-Pañeda, P. R. Shearing·Mar 28, 2024SaveLearn
MiMiC: A High-Performance Framework for Multiscale Molecular Dynamics SimulationsMiMiC is a framework for performing multiscale simulations in which loosely coupled external programs describe individual subsystems at different resolutions and levels of theory. To make it highly…Andrej Antalík, Andrea Levy, Sonata Kvedaravičiūtė et al.·Mar 27, 2024SaveLearn
IR Spectroscopy of Carboxylate-Passivated Semiconducting Nanocrystals: Simulation and ExperimentSurfaces of colloidal nanocrystals are frequently passivated with carboxylate ligands which exert significant effects on their optoelectronic properties and chemical stability. Experimentally,…Jakub K. Sowa, Danielle M. Cadena, Arshad Mehmood et al.·Mar 27, 2024SaveLearn