Models of quantum tunneling of a diatomic molecule affected by laser pulses through repulsive barriers

Vinitsky, S. I.; Гусев, А. А.; Чулуунбаатар, О.; Hai, Luong Le; Derbov, Vladimir L.; Krassovitskiy, P. M.

doi:10.1117/12.2053155

Cited by 3 publications

(1 citation statement)

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“…In contrast to this, numerous experimental studies involving the tunnelling of composite particle systems have been conducted. Tunnelling of composite particle systems is being studied for applications in quantum diffusion of molecules, optical control of molecular tunnelling, and exciton tunnelling, for example [1].…”

Section: Introductionmentioning

confidence: 99%

Resonant transmission of weakly bound multi-atomic molecules

Shegelski

Jones

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et al. 2019

J. Phys. B: At. Mol. Opt. Phys.

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This article examines resonant tunnelling of multi-atomic systems, extending the body of work on resonant tunnelling in this area beyond diatomic homo-nuclear systems. We consider diatomic molecules with distinct atoms having different masses, and linear triatomic molecules with indistinguishable atoms. The molecule is incident in the bound state upon a step potential with an energy increase of V0 for each atom. We calculate the probabilities of reflection pR and transmission pT in the bound state and the dependence on the energy of the molecule. We find that, as was the case for the homo-nuclear molecule, resonant transmission for diatomic molecules with distinguishable atoms occurs for arbitrarily weak binding, and pT is close to one for finite binding energy. We also find resonant transmission for linear triatomic molecules. We show results for the time-dependent Schrödinger equation which agree with resonant transmission. We also consider the transmission of an N-atom one-dimensional molecule.

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Section: Introductionmentioning

confidence: 99%