A CTMC Study of Collisions between Protons and H<sub>2</sub><sup>+</sup>Molecular Ions

Sattin, F.; Salasnich, Luca

doi:10.1088/0031-8949/58/5/007

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…are around 4%, and therefore the calculation can be considered as converged. We have also analyzed the convergence with statistics estimating the standard deviation error of the probability as explained in [54], and we have found errors smaller than 3%. These cross sections are compared to experimental data [26,28], previous 4b-CTMC [36,38], and semiclassical atomic close-coupling [31] calculations.…”

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confidence: 99%

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

et al. 2016

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We propose a classical trajectory Monte Carlo method to describe two-center collisions with two active electrons. The approach is based on switching between standard four-body and three-body descriptions and it is therefore easy to implement. We demonstrate the reliability of the approach for fundamental H+H and H + +H − collisions that neither four-body nor three-body classical methods describe satisfactorily.

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Section: Fig 2 Upper Panelmentioning

confidence: 99%

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

et al. 2016

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“…On the other hand, with an intensity of 10 17 W/cm 2 (see Figure f) CEP = 0° tends more toward ionization, whereas contributions from CEP = −45° and −90° are the least. To estimate the involvement of statistical errors in the results, standard deviation errors of the probabilities are computed following ref and are reported alongside in Figure . The error bars around the CEP values are found to merge into each other, which eliminates the possibility of significant statistical errors.…”

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confidence: 99%

Controlling Electron Dynamics with Carrier-Envelope Phases of a Laser Pulse

2019

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A theoretical study on the ionization dynamics of carbon atom irradiated with a few-cycle, intense laser field is performed within a quasiclassical model to get mechanistic insights into an earlier reported carrier-envelope phase dependency of ionization probabilities of an atom [Phys. Rev. Lett. 2013, 110, 083602]. The carrier-envelope phase of the laser pulse is found to govern the overall dynamics, reflecting its importance in controlling electronic motion. To understand the origin of this effect, individual trajectories were analyzed at a particular laser intensity. We found that a variation in the carrier-envelope phase affects the angle of ejection of the electrons and subsequently the attainment of the desired final state.

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“…Alternatively, in the intermediate to high-energy regime, classical approaches have been developed quite successfully to collisions between simple molecules and protons or multiply charged ions; cf., for example [30][31][32], and references therein. These treatments are similar to their counterparts in ion-atom collisions, but require further approximations to deal with the extra repulsive terms related to the nucleusnucleus and electron-electron interactions within the molecular target.…”

Section: Introductionmentioning

confidence: 99%

Classical and semiclassical calculations of electron transfer cross sections inkeV-energy ion-molecule collisions

et al. 2004

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We apply a many-body classical model and a semiclassical coupled-channel approach to study the electronic processes occurring in the course of fast collisions between atomic and molecular species. The methods are applied in a comparative study of electron transfer in He 2+ /Ar 2+ −H 2 + collisions at keV u −1 impact energies.The classical calculations are in agreement with recent experimental data [H. Bräuning et al., J. Phys. B 34, L321 (2001)] for projectile velocities larger than the initial electron velocity. The semiclassical model is based on the sudden approximation where the electronic wave function is expressed by linear combinations of traveling atomic capture states and target molecular states obtained at fixed nuclei. The related charge transfer cross sections are slightly underestimated (overestimated) for He 2+ ͑Ar 2+ ͒ when considering H 2 + in its initial vibrational ground state. These cross sections do, however, depend strongly on the internuclear distance of the hydrogen molecular ion: when involving an initial vibrational excitation of the target, the averaged cross sections obtained from the semiclassical approach become in fair agreement with experiments.

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A CTMC Study of Collisions between Protons and H₂⁺Molecular Ions

Cited by 6 publications

References 43 publications

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

Controlling Electron Dynamics with Carrier-Envelope Phases of a Laser Pulse

Classical and semiclassical calculations of electron transfer cross sections inkeV-energy ion-molecule collisions

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A CTMC Study of Collisions between Protons and H2+Molecular Ions

Cited by 6 publications

References 43 publications

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

Switching classical trajectory Monte Carlo method to describe two-active-electron collisions

Controlling Electron Dynamics with Carrier-Envelope Phases of a Laser Pulse

Classical and semiclassical calculations of electron transfer cross sections inkeV-energy ion-molecule collisions

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A CTMC Study of Collisions between Protons and H₂⁺Molecular Ions