When two particles are entangled, their wave functions become correlated, meaning that the state of one particle is intimately connected to the state of the other. However, it's important to note that this correlation does not imply any kind of physical influence or communication between the particles.
When a measurement is performed on one of the entangled particles, and its wave function collapses to a specific state, the wave function of the other entangled particle also collapses instantaneously. This collapse happens regardless of the spatial separation between the particles. This phenomenon is known as "quantum entanglement."
However, it's crucial to understand that the collapse of the wave function in one particle does not provide any information about the outcome of a measurement on the other particle. The collapse is a random process, and the specific outcome of each measurement cannot be determined in advance.
This property of entangled particles is often referred to as "spooky action at a distance" and has been experimentally confirmed through various tests of Bell's inequality. However, it does not allow for any form of superluminal (faster-than-light) communication or transfer of information between the entangled particles.
In summary, the collapse of the wave function in one entangled particle does trigger a corresponding collapse in the wave function of the other particle, but it does not allow for the transmission of information between the particles.