Quantum Physics2026-06-212 minarXiv:2606.22707expressQuantum pendulum probes realityIn the lab, there's a trap, an invisible 'pit' made of electric fields, where a charged dust grain about a hundred nanometers across levitates. It oscillates back and forth like a pendulum in a clock.Peter RenkelAlan GuthAlbert EinsteinAndrey MarkovWave Function Collapsequantum measurementquantum simulatorquantum-like modelsquantum state👍👎☆SimplePopularAdvanced