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Explore the mathematical derivation of phi 4 over 3 theory from many-body quantum mechanics in this 44-minute conference lecture delivered at the Erwin Schrödinger International Institute for Mathematics and Physics. Delve into advanced mathematical physics concepts as part of the Workshop on "Quantum Many-body Systems and Bose-Einstein Condensation: A Mathematical Physics Perspective" held in November 2025. Examine the rigorous mathematical framework connecting many-body quantum mechanical systems to effective field theories, specifically focusing on the emergence of phi 4 over 3 theory through systematic derivation methods. Gain insights into the intersection of quantum many-body physics, mathematical analysis, and field theory applications relevant to Bose-Einstein condensation phenomena.
