Comment on "Delayed luminescence of biological systems in terms of coherent states" [Phys. Lett. A 293 (2002) 93]

TL;DR

This paper critically examines a proposed model for delayed luminescence based on coherent states, demonstrating it predicts a linear time dependence incompatible with experimental data and identifying errors in the original oscillatory functions used.

Contribution

The authors provide a critical analysis showing the original model's limitations and correcting the mathematical inaccuracies in describing delayed luminescence.

Findings

Original model predicts linear time dependence, conflicting with observed data.

Oscillatory functions used are not solutions of the coupling equations.

Model's incompatibility with experimental delayed luminescence.

Abstract

Popp and Yan [F. A. Popp, Y. Yan, Phys. Lett. A 293 (2002) 93] proposed a model for delayed luminescence based on a single time-dependent coherent state. We show that the general solution of their model corresponds to a luminescence that is a linear function of time. Therefore, their model is not compatible with any measured delayed luminescence. Moreover, the functions that they use to describe the oscillatory behaviour of delayed luminescence are not solutions of the coupling equations to be solved.