Breaking news on last achievements on the definition of the black-body total internal energy

TL;DR

This paper reviews recent advances (2018-2024) in defining the black-body's total internal energy, highlighting quantum boundary effects and the potential role of classical physics in quantum black-body behavior.

Contribution

It introduces new perspectives on the black-body energy definition by incorporating Casimir energy and semi-classical simulations, challenging traditional views.

Findings

Casimir energy inclusion avoids vacuum catastrophe

Semi-classical simulation suggests classical physics relevance

Reconsideration of classical-quantum boundary in black-body

Abstract

The internal total-energy of the black-body is a physical quantity of paramount importance in the development of modern physics. Accordingly, together with a brief historical development, we report and comment last breaking news (2018-2024) concerning the definition and properties of this quantity. The first comment concerns with the inclusion of the Casimir energy that avoids the vacuum catastrophe implied by he presence of zero-point energy, thus leading to further quantum contributions associated with boundary effects. The second comment concerns with a semi-classical simulation of a one dimensional black-body whose results suggest a possible reconsideration on the role of classical physics on the quantum black-body.