weak measurement

Weak measurement is a technique in quantum physics where a system is observed gently enough that it doesn't significantly disturb its state. Unlike traditional measurements that give a definite result and alter the system, weak measurements provide partial information, allowing scientists to gather data without collapsing the system's quantum state. By repeating the process many times and averaging results, researchers can infer properties of the system that are difficult to access with standard measurements, offering insight into quantum behavior while preserving the system's coherence.