📝 SummarXiv

Abstract

Quantum state engineering operating with photons is a key enabler of major scientific breakthroughs and future quantum technologies. Its primary obstacle, however, is decoherence often caused by spontaneous emission, which is inherently difficult to control. In contrast, superradiance offers a more controllable alternative. The temporal dynamics of superradiance can be tuned via external experimental parameters, unlike those of spontaneous emission. Incorporating superradiance into quantum state engineering could therefore provide more accessible control over quantum systems. Motivated by this, we present a theoretical model for an ensemble of atoms in a V - type three - level configuration. Our numerical data are analyzed against key superradiance characteristics. The system successively emits a pair of superradiance pulses, effectively synthesizing the dynamically decoupled sub - ensembles into a single macroscopic ensemble involving all atoms. To our knowledge, this process, which we term superradiant synthesis, is demonstrated here for the first time. These findings offer new insights for practical quantum state engineering, particularly in enabling syntheses of macroscopic quantum sub-systems.