Researchers have developed a new laser-driven technique that creates phonons, the quantum of sound, on demand. This new technique, called “polaron laser-induced coherent phonons” (PLICP), can be used to create phonons of any frequency, which are essential for studying the behavior of materials. By controlling phonon frequencies, the new technique could be used to investigate many properties of materials, such as their electrical, thermal, and mechanical properties. The new approach could also have applications in quantum computing and information processing.

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source: Phys.org