Inertial fusion without compression does not work either with or without nanoplasmonics

TL;DR

The paper critiques a recent inertial fusion scheme that relies on instantaneous heating without compression, arguing it cannot achieve efficient fusion due to low reaction cross-sections and questioning the proposed nanoplasmonic support method.

Contribution

It provides a critical analysis of a novel inertial fusion approach, highlighting fundamental physical limitations and challenging the proposed nanoplasmonic enhancement.

Findings

Instantaneous heating without compression is ineffective for fusion.

Low nuclear reaction cross-sections hinder burn propagation.

Nanospheres do not significantly improve heating efficiency.

Abstract

A recently published scheme for inertial fusion based on instantaneous heating of an uncompressed fuel is criticized. It is shown that efficient fusion and time-like fusion burn propagation cannot be realized due to the low nuclear reaction cross-sections. The suggested use of nanospheres inside the volume of the target to support the fast heating of the fuel is also questioned.