# Comment on "Three-dimensional study of the six-body bound-state for the case of effective three-body configuration model" [Int. J. Mod. Phys. E 25, 9 (2016) 1650072]

## TL;DR

This paper critiques a previous study on the $^6$He binding energies, arguing that their computational approach is flawed and their results are numerically infeasible and misleading due to serious formal mistakes.

## Contribution

It provides a critical comment highlighting errors and impracticalities in a recent three-dimensional Faddeev-Yakubovsky calculation for $^6$He.

## Key findings

- The original formalism contains serious mistakes.
- The reported numerical results are misleading.
- The computational requirements are impractically large.

## Abstract

The authors argue that the calculated $^6$He binding energies by the solution of the coupled Faddeev-Yakubovsky integral equation in a Three-dimensional scheme reported by E. Ahmadi Pouya and A. A. Rajabi [Int. J. Mod. Phys. E 25, 9 (2016) 1650072] are incorrect. The formalism of the paper has serious mistakes and the numerical results are quite misleading because such a calculation even with small grids for Jacobi momenta and the angle variables leads to a huge memory of 37.8 PB (petabyte) which cannot even be achieved on present supercomputers.