Scientists have discovered that their brightness can be controlled by cooling atomic structures to minus 273 °C. Thermal motion of atoms at such low temperatures adds an additional degree of freedom, which opens possibilities for controlling the glow of ensembles of atoms. These discoveries could be used to develop quantum memory cells for quantum computers, where light is used to transmit information and atoms are used to store information.
St. Researchers from St. Petersburg Polytechnic University studied the effect of thermal motion on the fluorescence of atomic structures when cooled to minus 273 °C. They found that thermal motion affects the glow pattern in three phases: superemission, light trapping, and subemission. Scientists have found that in some cases heating leads to an increase in superluminescence and subradiation effects instead of the expected attenuation. These results pave the way to control the glow of atomic clusters to solve problems in quantum information science.
These studies could be used in the future to analyze the glow of impurity atoms in solids. Thermal fluctuations in solids can also significantly affect their fluorescence, and further research in this area requires more in-depth study.
Source: Ferra
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