Two independent effects of energy quantization turned out to be related

Over the years, the scientific community has looked for two direct manifestations of quantization: anti-grouping and

compression. These effects were revealed by studying the interferometry of light signals at the multiphoton level and subsequently studied by the method of resonant fluorescence - excitation of light radiation from an optical system at a frequency close to the natural frequency of radiation of an atom.

Resonant fluorescence of a two-level systemplayed an important role in the development of quantum optics, a science that describes light in accordance with the specific rules of quantum mechanics. The anti-bunching effect of photons was confirmed rather quickly, while the compression effect was only recently detected.

Researchers focus on the fact thatboth effects turned out to be two sides of the same coin rather than independent quantum properties of light, since the formation of an anti-bunching state occurs due to the multiphoton interference of compressed light pulses generated by the system with the coherent radiation of a pump laser.

The results obtained will lead to revisionthe results of early studies on the properties of resonant fluorescence and the implementation of the anti-bunching effect in a wide range of material systems capable of emitting light.

Thus, in front of the scientific communitynew perspectives are opening up for the optimization and control of quantum light sources using artificial noise generation at the multiphoton level. In turn, control over the coherent component of the interference will help to realize single-photon radiation sources operating in the constant pumping mode.

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