Premium
A unified analysis of some different approaches to spin‐wave theory
Author(s) -
Chow Yutze,
Liu C. J.
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560070759
Subject(s) - reciprocal lattice , formalism (music) , physics , theoretical physics , lattice (music) , reciprocal , algebraic number , boson , position and momentum space , quantum mechanics , space (punctuation) , statistical physics , quantum electrodynamics , mathematics , computer science , mathematical analysis , art , musical , linguistics , philosophy , diffraction , acoustics , visual arts , operating system
Several approaches to spin‐wave theory are analyzed from the viewpoint of algebraic realizations. The relations between the states used by Holstein and Primakoff, Dyson, and the present authors are established. It may be more advantageous to define the ground state in the momentum space (i.e., the reciprocal lattice space) than in the lattice space. Some of the other merits of two‐boson formalism are also mentioned.