Story Brief

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Add as preferred source An atom in a cavity between two mirrors (left) acts as a heat engine in a driven-dissipative quantum system in which energy is continuously added and lost to the environment. The fluctuations in the escaping light (center) are reduced (right) if only the atom but not the light is described quantum mechanically.

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