On new approaches to the study of nanosystems

TL;DR

This paper discusses various methods for simplifying the description of complex quantum nanosystems, emphasizing the importance of retaining essential information with minimal parameters and cautioning against flawed approaches.

Contribution

It introduces multiple approaches for reduced descriptions of quantum nanosystems and highlights the risks of using incorrect methods.

Findings

Several approaches to simplified nanosystem descriptions are considered.

The importance of retaining essential information with few parameters is emphasized.

A warning against a specific incorrect approach is provided.

Abstract

Quantum nanosystems are exremely diverse and often very complicated. That is why new methods of a simple description of such systems ensuring the retention of essential part of information at small numbers of parameters are needed. We consider several approaches to such reduced description. Besides we warn against using of one new incorrect approach.