laser cooling and trapping
Laser cooling and trapping is a technique used to slow down and confine atoms or molecules using laser beams. The atoms are cooled by repeatedly absorbing and emitting photons from the laser, which transfers their kinetic energy to the light. This allows scientists to reach extremely low temperatures, close to absolute zero, where the particles become almost motionless and can be held in place by the lasers. This method is crucial in various fields of research, such as quantum physics and atomic clocks.
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