Quantum Sticking of Atoms on Membranes
arXiv:1312.5754 · doi:10.1103/PhysRevB.90.245412
Abstract
A continuum model for low-energy physisorption on a membrane under tension is proposed and studied with variational mean-field theory. A discontinuous change in the energy-dependent sticking coefficient is predicted under certain conditions. This singularity is a result of the bosonic orthogonality catastrophe of the vibrational states of the membrane. The energy-dependent sticking coefficient is predicted to have exponential scaling in 1/E above the singularity. The application of this model to the quantum sticking of cold hydrogen to suspended graphene is discussed. The model predicts that a beam of atomic hydrogen can be completely reflected by suspended graphene at ultralow energies.
15 pages, 4 figures
References in corpus (1)
Cited by in corpus (13)
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- Variational approach to atom-membrane dynamics
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- Comment on "Theory of phonon-assisted adsorption in graphene: Many-body infrared dynamics''
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