Acceleration-induced spectral blind spots in stimulated atomic transitions

arXiv:2606.17396v1 Announce Kind: cross
Summary: Stimulated transitions are among the many most basic processes in light-matter interplay, underlying resonant absorption and emission in atomic methods. Right here we present that uniform acceleration can convert this acquainted response right into a frequency-selective absence of response. Particularly, when an incident photon has a nonzero momentum part transverse to the acceleration, the stimulated transition likelihood vanishes at a discrete set of frequencies mounted by the acceleration, the atomic transition frequency, and the photon propagation angle. At these spectral blind spots, each odd stimulated absorption and acceleration-induced excitation are concurrently suppressed, rendering the atom successfully unresponsive to the incident radiation. The impact arises from the nontrivial response of accelerated atoms to quantum vacuum fluctuations and supplies a particular signature of the Unruh impact via the absence, somewhat than the enhancement, of stimulated transitions. We additional present an order-of-magnitude estimate exhibiting that an electron-based implementation with spin splitting in mixed electrical and magnetic fields might entry the required parameter regime. These outcomes reveal an unexplored type of acceleration-modified light-matter interplay and establish spectral blind spots as a brand new manifestation of the Unruh impact.



Source link