The Composite Operator Method (COM)

TL;DR

The paper introduces the Composite Operator Method (COM), a technique designed to analyze strongly correlated systems by handling composite operators and enforcing symmetries to accurately compute their unconventional properties.

Contribution

It formulates the COM, details its internal mechanisms, and reports on its successful applications in studying strongly correlated systems.

Findings

COM effectively handles composite operators in SCS.

COM enforces algebra constraints and symmetries.

COM provides accurate computations of unconventional properties.

Abstract

The Composite Operator Method (COM) is formulated, its internals illustrated in detail and some of its most successful applications reported. COM endorses the emergence, in strongly correlated systems (SCS), of composite operators, optimally deals with their unusual features and implements algebra constraints, and other relevant symmetries, in order to properly compute the unconventional properties of SCS.