Dynamics of an Antiferromagnetic Bloch Line Driven by Spin Current

We demonstrate that a Bloch line in a bi-axial antiferromagnet driven by a spin current is a close analog of a fluxon in a long Josephson junction. We propose a scheme that allows to create, move, read, and clear such Bloch lines. Compared to superconductors, this transmission line operates at room temperature and can be dynamically reconfigured.