Year: 2025
Type: article
Abstract: Trapped ions in a periodic potential are a paradigm of a frustrated Wigner crystal. We study a model for a 1D chain of such ions, as well as an approximation by a Frenkel–Kontorova model. The FK model, however, has other long-range properties. We discuss the meaning of structures like kink or anti-kink in the frame of the soliton theory, and that ion chains with large distances against the laser frame can have difficulties to move solitons. We study the case with 3 particles only for which all important properties can be demonstrated.
Source: The European Physical Journal B
Authors: Wolfgang Quapp, Josep Maria Bofill
Institutions: Leipzig University, Universitat de Barcelona
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,490
OpenAlex ID: W4414200081