Transactions in Theoretical and Mathematical Physics

Transactions in Theoretical and Mathematical Physics

Lie Algebraic Approaches to Advanced Few-Body Hamiltonians in Physics

Document Type : Original Article

Author
Department of Physics, Qom University of Technology, Qom, Iran
Abstract
In quantum many-body systems, the emergence of complex interactions generally prevents the straightforward application of conventional analytical methods such as direct solution of the Schrödinger equation, variation theory, or the WKB approximation. An alternative algebraic perspective—employing techniques such as representation theory, reduction transformations, and gauge transformations—provide successful ways by identifying the hidden Lie algebra underlying a given problem.
On the other hand, few-body systems remain challenging, as their symmetries are limited rather than N-body cases. In this work, we demonstrate that by incorporating geometric insight, one may establishes a meaningful connection between the mathematical structure and the physical content of the problem.
Keywords
Subjects

Volume 3, Issue 1
Winter 2026
Pages 20-24

  • Receive Date 22 January 2026
  • Accept Date 22 February 2026
  • First Publish Date 22 February 2026
  • Publish Date 01 February 2026