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Related papers: Selective Bond-Breaking in Formic Acid by Dissocia…

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A two-orbital two-electron diatomic model resembling LiH is used to investigate the differences between the exact L\"owdin-Shull and approximate Hartree-Fock-Bogoliubov and Baerends-Buijse density matrix functionals in the medium- to…

Chemical Physics · Physics 2020-09-09 Robert van Meer , Jeng-Da Chai

We model two bosons in an optical lattice near a Feshbach or photoassociation resonance, focusing on the Bose-Hubbard model in one dimension. Whereas the usual atoms-only theory with a tunable scattering length yields one bound state for a…

Atomic Physics · Physics 2012-03-12 Jerome C. Sanders , Otim Odong , Juha Javanainen , Matt Mackie

We present the results of theoretical investigation on the electronic structure, bonding nature and ground state properties of Th$_2$Al and Th$_2$AlH$_4$ using generalized-gradient-corrected first-principles full-potential…

Materials Science · Physics 2009-11-07 P. Vajeeston , R. Vidya , P. Ravindran , H. Fjellvåg , A. Kjekshus , A. Skjeltorp

We study the ground-state properties of one-dimensional mixtures of bosonic and fermionic atoms resonantly coupled to fermionic Feshbach molecules. When the particle densities of fermionic atoms and Feshbach molecules differ, the system…

Quantum Gases · Physics 2013-10-18 Shimul Akhanjee , Masahisa Tsuchiizu , Akira Furusaki

The electron-electron correlation term in two-atomic collision is the most important, most difficult term to obtain the effective interatomic potential. Generally the H and H collision is a four center problem. It is extremely difficult to…

Atomic Physics · Physics 2013-11-14 Hasi Ray

Electronic properties of graphene oxides enriched by the strong chemical bondings are investigated using first-principle calculations. They are very sensitive to the changes in the number of graphene layer, stacking configuration, and…

Materials Science · Physics 2015-07-28 Ngoc Thanh Thuy Tran , Shih-Yang Lin , Yu-Tsung Lin , Ming-Fa Lin

We develop the theory of radiative association of an atom and a diatomic molecule within a close-coupling framework. We apply it to the formation of H$_3^-$ after the low energy collision (below 0.5 eV) of H$_2$ with H$^-$. Using recently…

Atomic Physics · Physics 2015-05-27 M. Ayouz , Raphael Lopes , Maurice Raoult , Olivier Dulieu , V. Kokoouline

We have studied electron-induced ion-pair dissociation dynamics of CO using the state-of-art velocity map imaging technique in combination with a time-of-flight-based two-field mass spectrometer. Extracting the characteristics for O$^-$/CO…

Atomic Physics · Physics 2022-08-31 Narayan Kundu , Vikrant Kumar , Dhananjay Nandi

Our previous studies of dissociative recombination, and vibrational excitation/de-excitation of the BeH$^+$ ion, based on the multichannel quantum defect theory, are extended to collision energies above the dissociation threshold, taking…

We report on higly accurate absolute frequency measurement against a femtosecond frequency comb of 6 saturated absorption lines of formic acid (HCOOH) with an accuracy of 1 kHz. We also report the frequency measurement of 17 other lines…

Pair-correlated fermionic atoms are created through dissociation of weakly bound molecules near a magnetic-field Feshbach resonance. We show that correlations between atoms in different spin states can be detected using the atom shot noise…

Other Condensed Matter · Physics 2009-11-11 M. Greiner , C. A. Regal , J. T. Stewart , D. S. Jin

Total and partial cross sections for breakup of ground rovibronic state of H$_2^+$by photon impact are calculated using the exact nonadiabatic nonrelativistic Hamiltonian without approximation. The converged results span six orders of…

Chemical Physics · Physics 2013-08-09 Daniel J. Haxton

We present the first theoretical treatment of the formation of highly excited neutral H atoms (H$^{*}$) for strongly driven H$_{2}$. This process, with one electron ionizing and one captured in a Rydberg state, was recently reported in an…

Atomic Physics · Physics 2015-05-28 A. Emmanouilidou , D. Tchitchekova , C. Lazarou , U. Eichmann

High-resolution mass spectra of helium droplets doped with C$_{60}$ and formic acid (FA) are ionized by electrons. Positive ion mass spectra reveal cluster ions [(C$_{60}$)$_p$FA$_n$]$^+$ together with their hydrogenated and dehydrogenated…

Atomic and Molecular Clusters · Physics 2022-11-21 Masoomeh Mahmoodi-Darian , Elias Jabbour Al Maalouf , Samuel Zöttl , Paul Scheier , Olof Echt

We report a computational study of the anion states of the resveratrol (RV) and resorcinol (RS) molecules, also investigating dissociative electron attachment (DEA) pathways. RV has well known beneficial effects in human health, and its…

Atomic Physics · Physics 2022-11-08 Ely G. F. de Miranda , Lucas M. Cornetta , Márcio T. do N. Varella

For understanding carbon erosion and redeposition in nuclear fusion devices, it is important to understand the transport and chemical break-up of hydrocarbon molecules in edge plasmas, often diagnosed by emission of the CH A^2\Delta -…

The hydroxyl radical, OH, is an important component of many natural and technological plasmas but there is little available information on processes involving its collisions with low-energy electrons. Low-energy electron collisions with OH…

Atomic Physics · Physics 2019-09-04 Kalyan Chakrabarti , Vincenzo Laporta , Jonathan Tennyson

We report on the creation of heterospecies bosonic molecules, associated from an ultracold Bose-Bose mixture of 41K and 87Rb, by using a resonantly modulated magnetic field close to two Feshbach resonances. We measure the binding energy of…

Other Condensed Matter · Physics 2009-01-29 C. Weber , G. Barontini , J. Catani , G. Thalhammer , M. Inguscio , F. Minardi

Vibrational states of the formic acid molecule are converged using the GENIUSH-Smolyak approach and the potential energy surface taken from [D. Tew and W. Mizukami, J. Phys. Chem. A 120, 9815 (2016)]. The quantum nuclear motion is described…

Chemical Physics · Physics 2022-04-20 Alberto Martín Santa Daría , Gustavo Avila , Edit Mátyus

The spatial distribution of the internal pressure of an electron fluid, which spontaneously arises at the formation of a molecule or a crystal, is linked to the main features of chemical bonding in molecular crystals. The local pressure is…

Chemical Physics · Physics 2016-05-04 Vladimir G. Tsirelson , Adam I. Stash , Ilya V. Tokatly
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