Free from spurious solutions integral equation for three-magnon bound states in 1D XXZ ferromagnet

2012/08/30 by P. N. Bibikov, Bibikov, P. N.
Physics and Astronomy · #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena

paper · pdf · doi:10.48550/arxiv.1208.6177

Abstract

A new integral equation for three-magnon bound states in XXZ spin chain is suggested. Unlike the one presented by C. K. Majumdar about 40 years ago this equation does not have spurious solutions. Such an advantage is a result of decomposition of the wave function in the Bloch basis rather than in the basis of flat waves.

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