Molecular dissociation in presence of a catalyst : II. The bond breaking role of the transition from virtual to localized states
Date
2016Author
Ruderman, Andrés
Dente, Axel Damián
Santos, Elizabeth del Carmen
Pastawski, Horacio Miguel
Metadata
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We address a molecular dissociation mechanism that is known to occur when a H 2 molecule approaches a catalyst with its molecular axis parallel to the surface. It is found that molecular dissociation is a form of quantum dynamical phase transition associated to an analytic discontinuity of quite unusual nature: the molecule is destabilized by the transition from non-physical virtual states into actual localized states. Current description complements our recent results for a molecule approaching the catalyst with its molecular axis perpendicular to the surface (Ruderman et al 2015 J. Phys.: Condens. Matter 27 315501). Also, such a description can be seen as a further successful implementation of a non-Hermitian Hamiltonian in a well defined model.
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Ruderman, A., Dente, A., Santos, E. y Pastawski, H. (2016). Molecular dissociation in presence of a catalyst: II. The bond breaking role of the transition from virtual to localized states. Materials Research Express, 3 (8). https://dx.doi.org/10.1088/2053-1591/3/8/085017