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Feynman's Path Integral Formulation of Quantum Mechanics
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Delve into Richard Feynman's groundbreaking 1948 PhD thesis, 'Space-Time Approach to Quantum Mechanics,' where, as a 20-something graduate student, he introduced the path integral formulation. This innovative approach revolutionized quantum mechanics, offering an elegant mathematical technique to describe the time evolution of particles. Feynman's method considers all possible paths a particle could take, allowing a profound understanding of quantum probabilities. The formulation, rooted in probability amplitudes and the principle of least action, provides a bridge between classical and quantum worlds. Feynman's work not only reconciles with existing quantum theories but also lays the foundation for a more intuitive exploration of quantum processes.
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