Schrödinger's cat experiment, proposed by physicist Erwin Schrödinger, is a thought experiment illustrating the principle of quantum superposition and its paradox when applied to macroscopic systems. It describes a cat placed in a sealed box with a radioactive source and a poison mechanism, such that the cat is considered simultaneously alive and dead until the box is opened and the system observed. The scenario highlights the indeterminacy and complexity of quantum states under observation. While it critiques the Copenhagen interpretation and the notion of entanglement, and aids in conceptual understanding of superposition, it cannot be directly applied in quantum computing, as the superposition in this context is conceptual rather than a genuine quantum physical state—such states are treated separately by Schrödinger in his formal quantum mechanics work.