Quantum researchers engineer extremely precise phonon lasers

When lasers were invented in the 1960s, they opened new avenues of scientific discovery and everyday applications, from grocery store scanners to corrective eye surgery. Conventional lasers control photons (individual particles of light), but over the past 20 years, scientists have invented lasers that control other fundamental particles, including phonons (individual particles of vibration or sound). Controlling phonons could open up even more possibilities with lasers, such as taking advantage of unique quantum properties like entanglement.