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Foundation for modern physics: Shin'ichirō Tomonaga's groundbreaking contributions to quantum field theory laid the groundwork for our understanding of fundamental particles and their interactions. His work on renormalization, which resolves the issue of infinities in quantum electrodynamics, earned him the Nobel Prize in Physics in 1965. Tomonaga's legacy continues to shape the field of particle physics, providing a theoretical framework for exploring the subatomic realm.