Ground state cooling of nanoparticle motion has been achieved in a new experiment that has implications for the development of quantum technologies. Researchers from the University of Basel and ETH Zurich have demonstrated the cooling of a nanoparticle to its absolute lowest energy state. The team used a combination of optical tweezers and laser light to cool the nanoparticle down to its ground state. This breakthrough could have implications for quantum technologies such as quantum sensors, computers, and communication systems.

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source: Phys.org