Reference: Essays on Substance
Quantum Superposition
Superposition is a fundamental concept in quantum mechanics that describes the ability of quantum systems to exist in multiple states simultaneously until it is measured. It is mathematically represented as a linear combination of all possible states of a system. This principle is a direct consequence of the linear nature of the Schrödinger equation, which allows for linear combinations of solutions to represent valid quantum states.
The Schrödinger equation takes the approach of the dimensionless “point particle.” Therefore, it cannot handle the dimensions of a material particle. The concept of “various possible states” of a quantum system comes from trying to address the spread of a material particle from a dimensionless “point particle” approach. All possible states are actually addressing different points in the spread of the material particle.
The Schrödinger’s cat is actually quite substantial. It covers a lot more space than a mathematical point.
.
