Fernández-Rañada, Antonio2023-06-212023-06-211979-01-150556-282110.1103/PhysRevD.19.493https://hdl.handle.net/20.500.14352/64909© 1979 The American Physical Society. This work was partially supported by Junta de Energía Nuclear, Spain.The Lieb form of the Heisenberg relations is applied to the kinks of a nonlinear Dirac field. It is found that these relations are violated for large enough values of the self-coupling constant. A close relation between this violation and the norm of the kinks is established.engjournal articlehttp://dx.doi.org/10.1103/PhysRevD.19.493http://journals.aps.orgopen access537ElectricidadElectrónica (Física)2202.03 Electricidad