2008
DOI: 10.1063/1.3026605
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On collisional energy transfer in recombination and dissociation reactions: A Wiener–Hopf problem and the effect of a near elastic peak

Abstract: The effect of the large impact parameter near-elastic peak of collisional energy transfer for unimolecular dissociation/bimolecular recombination reactions is studied. To this end, the conventional single exponential model, a biexponential model that fits the literature classical trajectory data better, a model with a singularity at zero energy transfer, and the most realistic model, a model with a near-singularity, are fitted to the trajectory data in the literature. The typical effect of the energy transfer … Show more

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Cited by 11 publications
(47 citation statements)
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References 61 publications
(86 reference statements)
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“…To describe the transport of chemical recombination dissociation reaction AB ↔ C with the vibrationally excited intermediate AB * , we model the quantum system interacting with two chemical reservoirs or leads with different chemical potentials which provide the effective chemical pumping for the system by collisions 44 . The three quantum states are denoted by |AB , |AB * and |C as schematically shown in Fig.1.…”
Section: B Coupled To Chemical (Fermionic) Reservoirsmentioning
confidence: 99%
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“…To describe the transport of chemical recombination dissociation reaction AB ↔ C with the vibrationally excited intermediate AB * , we model the quantum system interacting with two chemical reservoirs or leads with different chemical potentials which provide the effective chemical pumping for the system by collisions 44 . The three quantum states are denoted by |AB , |AB * and |C as schematically shown in Fig.1.…”
Section: B Coupled To Chemical (Fermionic) Reservoirsmentioning
confidence: 99%
“…In this paper, we will establish a theoretical framework in terms of curl flux, population landscape and coherence at steady state for the first time for the non-equilibrium quantum dynamical systems and associated thermodynamics, by exploring the energy transport between different sites in single molecules 45,46 and chemical reaction process (also charge transfer in molecules) 40,44,47,54,56 . The former is coupled to the two heat environments (bosonic) with different temperatures while the latter is coupled to the two chemical environments (fermionic such as electronic baths) with different chemical potentials.…”
Section: Introductionmentioning
confidence: 99%
“…15 The recombination rate constant may also be determined directly, upon using the populations acquired from the analytic solution of the master equation. 27 In previous works, approximate analytic solutions, distribution functions for populations, for a master equation for a unimolecular process for a strong collision model, 1 and solutions for the low pressure limit unimolecular master equation based on various energy transfer models have been derived for their dissociation rate constants. 1,27,28 In one study, a Wiener-Hopf method was used to derive analytic solutions, considered for the energy transfer part of the master equation.…”
Section: -17mentioning
confidence: 99%
“…27 In previous works, approximate analytic solutions, distribution functions for populations, for a master equation for a unimolecular process for a strong collision model, 1 and solutions for the low pressure limit unimolecular master equation based on various energy transfer models have been derived for their dissociation rate constants. 1,27,28 In one study, a Wiener-Hopf method was used to derive analytic solutions, considered for the energy transfer part of the master equation. 27 For a bimolecular reaction in discrete matrix form, analytic solutions for populations have been derived.…”
Section: -17mentioning
confidence: 99%
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