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Presented By: Department Colloquia

Department Colloquium | Quantum Field Theory, Separation of Scales, and Beyond

Nathan Seiberg (IAS)

We will review the role of Quantum Field Theory (QFT) in modern physics. We will highlight how QFT uses a reductionist perspective as a powerful quantitative tool relating phenomena at different length and energy scales. We will then discuss various examples, motivated by string theory and lattice models, that challenge this separation of scales and seem to lie outside the standard framework of QFT. These lattice models include theories of fractons and other exotic systems.

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