Doubts cast on ‘superradiant neutrino laser’ proposal
Debate span atomic and particle physics The post Doubts cast on ‘superradiant neutrino laser’ proposal appeared first on Physics World .
The concept of a "superradiant neutrino laser" was proposed by MIT researchers Benjamin Jones and Joseph Formaggio in a 2022 paper. Their idea was to create a Bose-Einstein condensate (BEC) of radioactive atoms, which would emit neutrinos coherently as a short, intense burst. However, this proposal has been called into question by several recent studies.
James Thompson, a BEC expert from NIST, JILA, and the University of Colorado in Boulder, expressed skepticism about the feasibility of such a device. He pointed out that the de Broglie wavelength of the emitted neutrinos is significantly shorter than the required distance for superradiance to occur. Wolfgang Ketterle, a Nobel laureate in physics and a BEC pioneer, has published two papers that further doubt the proposal.
Ketterle and his colleagues argue that the short wavelength of neutrinos, the fermionic nature of the atoms produced by neutrino decays, and the recoil of atoms after neutrino emission all make superradiant neutrino emission impossible.
The debate over the viability of a superradiant neutrino laser is significant, as it challenges the original proposal and raises questions about the potential for creating a coherent neutrino source. If successful, such a device could lead to the development of a BEC-based neutrino laser, which would be a remarkable achievement in physics. The controversy surrounding this proposal highlights the ongoing efforts to push the boundaries of our understanding of quantum phenomena and neutrino properties.
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