In David J. Wineland's experiments, what are usually trapped in a laser?
Atoms
Photons
Neutrons
Protons
Answer
In David J. Wineland's experiments, atoms are usually trapped in a laser. This is because lasers emit a very specific wavelength of light, which can be used to selectively excite atoms. When an atom absorbs a photon of light, it gains energy and moves to a higher energy state.
Mastering the Mysteries: The Extraordinary Journey of David J. Wineland