Sigma Quotes

Six Sigma has forever changed GE. Everyone-from the Six Sigma zealots emerging from their Black Belt tours, to the engineers, the auditors, and the scientists, to the senior leadership that will take this Company into the new millennium-is a true believer in Six Sigma, the way this Company now works. (Jack Welch)
The best Six Sigma projects begin not inside the business but outside it, focused on answering the question-how can we make the customer more competitive? What is critical to the customer's success?... One thing we have discovered with certainty is that anything we do that makes the customer more successful inevitably results in a financial return for us. View quote
Jack Welch
The possibility and significance of fractional angular momentum is discussed, and some simple physical realizations of it are mentioned. This leads naturally to consideration of the possibility of fractional quantum statistics, which is seen to be a possibility inherent in the kinematics of 2+1 dimensional quantum mechanics. Both sorts of fractionalization are intimately related to theories, and the classic considerations of Aharonov and Bohm on the significance of the vector potential in quantum mechanics. The meaning and importance of discrete gauge invariance in continuum theories is pointed out. Fractional statistics is shown to have a simple dynamical realization in the dynamics of charge-flux tube composites. Fractional statistics is shown to occur very naturally in the most geometrical quantum field theories in 2+1 dimensions, that is in the nonlinear sigma model and in quantum electrodynamics. View quote
Frank Wilczek