The Philosophy of Quantum Field Theory

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Baker, David John
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If we divide our physical theories (somewhat artificially) into theories of matter and theories of spacetime, quantum field theory (QFT) is our most fundamental empirically successful theory of matter. As such, it has attracted increasing attention from philosophers over the past two decades, beginning to eclipse its predecessor theory of quantum mechanics (QM) in the philosophical literature. Here I survey some central philosophical puzzles about the theory's foundations.