Quantum internal modes of solitons in 1d easy-plane antiferromagnet in strong magnetic field

TL;DR

This paper investigates the quantum dynamics of soliton internal modes in a 1D easy-plane antiferromagnet under strong magnetic fields, revealing unique quantum effects and their experimental signatures.

Contribution

It introduces a detailed analysis of quantum internal soliton modes and their coupling to translational modes in a strongly magnetized 1D antiferromagnet.

Findings

Quantum internal soliton modes are strongly coupled to translational modes.

Response functions of the system show significant changes due to these quantum effects.

Experimental detection of these effects is feasible.

Abstract

In presence of a strong external magnetic field the dynamics of solitons in a one-dimensional easy-plane Heisenberg antiferromagnet exhibits a number of peculiarities. Dynamics of internal soliton degrees of freedom is essentially quantum, and they are strongly coupled to the "translational" mode of soliton movement. These peculiarities lead to considerable changes in the response functions of the system which can be detected experimentally.