Ghirardi–Rimini–Weber theory

The Ghirardi–Rimini–Weber (GRW) theory is a spontaneous collapse theory in quantum mechanics, proposed in 1986 by Giancarlo Ghirardi, Alberto Rimini, and Tullio Weber. == Measurement problem and spontaneous collapses == Quantum mechanics has two fundamentally different dynamical principles: the linear and deterministic Schrödinger equation, and the nonlinear and stochastic wave packet reduction postulate.

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