The laser beam was split in two and passed through a cloud of atoms in different places, as if the detector were in two spots at once. The difference in signals showed how the quantum field interacts with such 'splitting'. In the future, this will help unite quantum mechanics with relativity.
🎯 Mixing the signal with a reference beam, like in a radio receiver, helps pick out weak quantum beats from the noise.
🎬 The idea of an object in two places at once inspires science fiction writers: in Hannu Rajaniemi’s novel 'The Quantum Thief,' the protagonist’s consciousness can be distributed across different points.