Entanglement Between Distant Macroscopic Objects Could Improve LIGO Gravity Measurements
Researchers have demonstrated entanglement between distant objects (millimeters in size and with billions atoms in a magnetic field) in a hybrid system consisting of a mechanical oscillator and an atomic spin ensemble. This constitutes a new milestone for hybrid macroscopic entanglement and for demonstration of noiseless trajectories in the negative-mass reference frame. Future applications of …