Quantum foundations concerns the conceptual and mathematical underpinnings of quantum theory. In particular, we search for novel quantum effects, consider how to interpret the formalism, ask where the formalism comes from, and how we might modify it. Research at Perimeter Institute is particularly concerned with reconstructing quantum theory from more natural postulates and reformulating the theory in ways that elucidate its conceptual structure. Research in the foundations of quantum theory naturally interfaces with research in quantum information and quantum gravity.
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Macroscopic observables and quantization
Nikolaas Landsman Radboud Universiteit Nijmegen
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Heisenberg\'s Uncertainty Principle
Pekka Lahti University of Turku
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Sequential Products of Quantum Measurements
Stanley Gudder University of Denver
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Quantum Mechanics with real clocks and rods
Rodolfo Gambini Universidad de la Republica Uruguay
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Operationalism and Quantum Gravity
Lucien Hardy Perimeter Institute for Theoretical Physics
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Unsharp reality and the quantum-classical contrast
Paul Busch University of York
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Quantum Darwinism: Classicality via Objectivity
Robin Blume-Kohout Sandia National Laboratories
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Two concepts of classicality in quantum mechanics
Olaf Dreyer Freelance Consultant
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Categorizing nonclassical phenomena: the explanatory power of epistemic restrictions and contextuality
Robert Spekkens Perimeter Institute for Theoretical Physics