On the possibility of superradiant neutrino emission by atomic condensates

TL;DR

This paper explores whether superradiant neutrino emission can occur in atomic condensates, analyzing conditions under which collective emission might be possible despite challenges posed by fermionic atom properties.

Contribution

It provides a detailed analysis of conditions enabling superradiant neutrino emission in cold-atom systems, addressing previous skepticism about the fermionic limitations.

Findings

Superradiant emission may occur under specific conditions.

Fermionic nature imposes constraints but does not entirely prohibit collective emission.

Certain atomic configurations could facilitate neutrino superradiance.

Abstract

In a recent work [B. J. P. Jones and J. A. Formaggio, Phys. Rev. Lett. 135, 111801 (2025)], the possibility of superradiant neutrino emission from atomic condensates has been theoretically proposed. Subsequent analysis by Y. K. Lu, H. Lin, and W. Ketterle [arXiv:2510.21705] questioned this scenario, emphasizing the limiting role of the fermionic nature of the decayed atoms. In this study, we revisit the problem and discuss under which conditions collective emission phenomena might still emerge in cold-atom systems.