The sapphire crystal resonator used to probe the limits of quantum mechanics Matteo Fadel/ETH Zurich
Quantum effects have been demonstrated on one of the largest scales ever, pushing the boundaries of the quantum world. A crystal of 10^16 atoms has been placed in a superposition of two quantum states, breaking the previous record of only 2000 atoms.
When a particle is in a quantum superposition of two states, it occupies both distinct states at the same time – the most famous example is Schrödinger’s cat, in which a theoretical cat in …
Article amended on 21 April 2023
We have corrected how the highest macroscopicity of any quantum experiment was achieved.
