Investigation of plasmonic evolution of atomically size-selected Au clusters by electron energy loss spectrum--from solid state to molecular scaleVersatile quantum modes emerge for plasmon describing the collective oscillations of free electrons in metallic nanoparticles when the particle sizes are greatly reduced. Rather than traditional…Siqi Lu, Lin Xie, Kang Lai et al.·Mar 25, 2020SaveLearn
An alternative indicator of annihilated electrons in atoms: Rahm's electronegativity scaleThis paper presents a new explanation of the width of gamma-ray spectra based on Rahm's electronegativity scale. This quantitatively proves, for the first time, that positrophilic electrons in…Yu Wu, Xiaoguang Ma, Fang Yuan et al.·Mar 23, 2020SaveLearn
Derivation of K-matrix reaction theory in a discrete basis formalismThe usual derivations of the S and K matrices for two-particle reactions proceed through the Lippmann-Schwinger equation with formal definitions of the incoming and outgoing scattering states. Here…Y. Alhassid, G. F. Bertsch, P. Fanto·Mar 17, 2020SaveLearn
Time-resolved formation of excited atomic and molecular states in XUV-induced nanoplasmas in ammonia clustersHigh intensity XUV radiation from a free-electron (FEL) was used to create a nanoplasma inside ammonia clusters with the intent of studying the resulting electron-ion interactions and their interplay…Rupert Michiels, Aaron Cristopher LaForge, Matthias Bohlen et al.·Mar 12, 2020SaveLearn
Scaling rules for the ionization of biological molecules by highly charged ionsWe investigate scaling rules for the ionization cross sections of multicharged ions on molecules of biological interest. The cross sections are obtained using a methodology presented in [Mendez et…Alejandra M. P. Mendez, Claudia C. Montanari, Jorge E. Miraglia·Mar 9, 2020SaveLearn
Gamma -ray spectra in the positron-annihilation process of molecules at room temperatureIn this study, a fully self-consistent method was developed to obtain the wave functions of the positron and electrons in molecules simultaneously. The wave function of a positron at room temperature…Lin Tang, Xiaoguang Ma, Jipeng Sui et al.·Mar 8, 2020SaveLearn
A density functional theory based comparative study of hybrid photoemissions from Cl@C60, Br@C60 and I@C60Photoionization from atom-C60 hybrid levels in halogen endufullerene molecules, Cl@C60, Br@C60 and I@C60, are calculated using a linear response density functional method. Both the ordinary…Dakota Shields, Ruma De, Esam Ali et al.·Mar 6, 2020SaveLearn
Disentangling the molecular nature of the benchmark molecule H2O2 through many-body fragmentation dynamicsUniversality in fragmentation has been the framework of scientific interest from a considerable period to disentangle the structure and dynamics of atoms and molecules. Studies in this direction…M. Nrisimhamurty, Anuvab Mandal, Deepankar Misra·Mar 5, 2020SaveLearn
Machine Learning for Achieving Bose-Einstein Condensation of Thulium AtomsBose-Einstein condensation (BEC) is a powerful tool for a wide range of research activities, a large fraction of which are related to quantum simulations. Various problems may benefit from different…E. T. Davletov, V. V. Tsyganok, V. A. Khlebnikov et al.·Feb 29, 2020SaveLearn
Cesium nDJ+6S1/2 Rydberg molecules and their permanent electric dipole momentsCs2 Rydberg-ground molecules consisting of a Rydberg, nDJ (33 ≤ n ≤ 39), and a ground state atom, 6S1/2 (F=3 or 4), are investigated by photo-association spectroscopy in a…Suying Bai, Xiaoxuan Han, Jingxu Bai et al.·Feb 22, 2020SaveLearn
Explosion Dynamics of Methane Clusters Irradiated by 38 nm XUV Laser PulsesWe have studied the explosion dynamics of methane clusters irradiated by intense, femtosecond, 38 nm (32.6 eV) XUV laser pulses. The ion time-of-flight spectrum measured with a Wiley-McLaren-type…A. Helal, S. Bruce, H. Quevedo et al.·Feb 8, 2020SaveLearn
Analytical solution for the spectrum of two ultracold atoms in a completely anisotropic confinementWe study the system of two ultracold atoms in a three-dimensional (3D) or two-dimensional (2D) completely anisotropic harmonic trap. We derive the algebraic equation J3D(E) = 1/a3D (J2D(E) =…Yue Chen, Da-Wu Xiao, Ren Zhang et al.·Feb 6, 2020SaveLearn
Quasicrystalline and crystalline rare-gas clusters produced in supersonic jets: Impact of the jet clustering level on cathodoluminescence spectraThe paper proposes a new approach to studying cathodoluminescence spectra of substrate-free rare-gas clusters produced in supersonic jets exhausting into a vacuum. The approach, which takes into…V. L. Vakula, O. G. Danylchenko, Yu. S. Doronin et al.·Jan 31, 2020SaveLearn
Viscous motion of spherical nanoparticles that scatter laser radiation in the Rayleigh regimeThe mechanism of transverse radiation viscosity for nanospheres moving in laser field is analyzed. It is demonstrated that in the process of light scattering by these particles besides the force Fs…M. Ya. Amusia, A. S. Baltenkov·Jan 31, 2020SaveLearn
Photoelectron circular dichroism in the multiphoton ionization by short laser pulses: III. Photoionization of fenchone in different regimesPhotoelectron circular dichroism (PECD) in different regimes of multiphoton ionization of fenchone is studied theoretically using the time-dependent single center method. In particular, we…Anne D. Müller, Eric Kutscher, Anton N. Artemyev et al.·Jan 14, 2020SaveLearn
The ethylene-carbon dioxide complex and the double rotor modelThe infrared spectrum of the weakly-bound C2H4-CO2 complex is investigated in the region of the nu3 fundamental band of CO2 (~2350 cm-1), using a tunable OPO laser source to probe a pulsed supersonic…A. R. W. McKellar, N. Moazzen-Ahmadi·Jan 4, 2020SaveLearn
MALDI-TOF and Quantum Chemical Study of Non-stoichiometric Tantalum Oxychloride ClustersUsing the MALDI-TOF spectroscopy method, clusters of non-stoichiometric tantalum oxychlorides formed as a result of hydrolysis of nanoscale reaction products of tantalum pentachloride with acetylene…E. G. Ilin, A. S. Parshakov, V. G. Yarzhemsky et al.·Dec 20, 2019SaveLearn
Inverted Ladder Type Optical Excitation of Potassium Rydberg States with Hot and Cold EnsemblesWe present experimental results on the sub-Doppler Rydberg spectroscopy of potassium in a hot cell and cold atoms, performed with two counter-propagating laser beams of 405 nm and 980 nm in the…Tzu-Ling Chen, Shao-Yu Chang, Yi-Jan Huang et al.·Dec 13, 2019SaveLearn
Water-methanol solutions characterized by liquid μ-jet XPS and DFT; the methanol hydration caseThe advent of liquid μ-jet setups as proposed by Faubel and Winter in conjunction with X-ray Photoemission Spectroscopy (XPS) has opened up a large variety of experimental possibilities in the…Eric Pellegrin, Virginia Perez-Dieste, Carlos Escudero et al.·Dec 5, 2019SaveLearn
Spectroscopy of corannulene cations in helium nanodropletsHelium tagging in action spectroscopy is an efficient method for measuring the absorption spectrum of complex molecular ions with minimal perturbations to the gas phase spectrum. We have used…Michael Gatchell, Paul Martini, Felix Laimer et al.·Dec 3, 2019SaveLearn
Lithium ions solvated in heliumWe report on a combined experimental and theoretical study of Li+ ions solvated by up to 50 He atoms. The experiments show clear enhanced abundances associated with HenLi+ clusters where…Monisha Rastogi, Christian Leidlmair, Lukas An der Lan et al.·Dec 3, 2019SaveLearn
Protonated Clusters of Neon and KryptonWe present a study of cationic and protonated clusters of neon and krypton. Recent studies using argon have shown that protonated rare gas clusters can have very different magic sizes than pure,…Michael Gatchell, Paul Martini, Arne Schiller et al.·Dec 3, 2019SaveLearn
Magic Sizes of Cationic and Protonated Argon ClustersThere has long been a discrepancy between the size distributions of Arn+ clusters measured by different groups regarding whether or not magic numbers appear at sizes corresponding to the closure…Michael Gatchell, Paul Martini, Lorenz Kranabetter et al.·Dec 3, 2019SaveLearn
Highly charged droplets of superfluid heliumWe report on the production and study of stable, highly charged droplets of superfluid helium. Using a novel experimental setup we produce neutral beams of liquid helium nanodroplets containing…Felix Laimer, Lorenz Kranabetter, Lukas Tiefenthaler et al.·Dec 3, 2019SaveLearn
Mixed cationic clusters of nitrogen and hydrogenThe addition of small impurities, such as a single proton charge carrier, in noble gas clusters has recently been shown to have considerable effects on their geometries and stabilities. Here we…P. Martini, F. Hechenberger, M. Goulart et al.·Dec 2, 2019SaveLearn