Erwin Schrödinger did not propose the collapse of the wave function. The concept of the collapse of the wave function is associated more closely with the Copenhagen interpretation of quantum mechanics, which was developed by Niels Bohr and Werner Heisenberg, among others.
The collapse of the wave function refers to the idea that when a measurement is made on a quantum system, the system's wave function, which describes its state, undergoes a sudden change or "collapse" to one of the possible eigenstates corresponding to the measurement outcome. This collapse is a probabilistic process, with the probability of each outcome determined by the system's wave function before the measurement.
Schrödinger, on the other hand, is best known for his development of the Schrödinger equation, which describes how the quantum state of a physical system changes over time. His work laid the foundation for understanding the behavior of quantum systems and is fundamental to the field of quantum mechanics.
