One-dimensional tunneling of the two-body bound state

• URL: http://arxiv.org/abs/2510.11932v1
• Date: Mon, 13 Oct 2025 20:52:10 GMT
• Title: One-dimensional tunneling of the two-body bound state
• Authors: N. Shypka, O. Hryhorchak, V. Pastukhov,
• Abstract summary: We consider the one-dimensional dimer formed by two coupled non-identical atoms when one of them also interacts with the zero-range potential located at the origin.<n>By calculating the dimer localized and scattering wave functions, we identify properties of the system without the two-body bound-state collapse.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We consider bound and scattering states of the one-dimensional dimer formed by two coupled non-identical atoms when one of them also interacts with the zero-range potential located at the origin. By calculating the dimer localized and scattering wave functions, we identify properties of the system without the two-body bound-state collapse. In general, we predict an enhancement of the dimer reflection compared to a single atom, except for a narrow region on the attractive side of the external potential.

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