THE BETHE ANSATZ

BETHE, H.

Zur Theorie der Metalle.

Berlin, Springer, 1931. 8vo. Bound in contemporary half cloth with gilt lettering, In "Zeitschrift für Physik", Band 71, 1931. Entire issue offered. Library stamp to title page and a three cm tear to upper front hindge, otherwise fine. Pp. 205-226. [Entire volume : VII, (1), 823 pp.].

First appearance of Bethe's paper containing his famous and much used method for finding the exact solutions of certain one-dimensional quantum many-body models. Bethe here found the exact eigenvalues and eigenvectors of the one-dimensional antiferromagnetic Heisenberg model Hamiltonian. Since then the method has been extended to other models in one dimension: Bose gas, Hubbard model, etc.

Order-nr.: 49052