The Bethe Ansatz

The Heisenberg spin-\(1/2\) chain c.h

Quantum spin chains represent one of the most useful settings in which to investigate many-body quantum physics. We here restrict to the simplest case of spin-\(1/2\), which is the furthest away from the classical limit. The isotropic Heisenberg model is considered in detail, and its anisotropic generalizations are covered in later sections.

In this section, we construct the eigenfunctions of finite (anisotropic) Heisenberg magnets using the coordinate Bethe Ansatz.

In this section:

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Author: Jean-Sébastien Caux

Created: 2023-06-07 Wed 16:02