Magnon Transfer in Heisenberg Chains with Trimer-Correlated Disorder Under the Influence of a Disordered Magnetic Field

We examined a one-dimensional quantum Heisenberg model that includes trimer-like correlated disordered exchange couplings and a non-uniform magnetic field. We conducted numerical experiments to study the transfer of magnons between the two ends of the chain. Using numerical methods, we calculated the time evolution of a localized magnon state at the left end of the chain. We evaluated the quality of the transfer from the left end to the right using standard tools such as fidelity and concurrence. Our calculations demonstrate the existence of magnon transfer with good fidelity for some specific energies (E>0) in the absence of a magnetic field. We also investigated the impact of the random magnetic field on our findings.