Quantum Foundations

Credence and Chance in a Pluralist Approach to Quantum Theories featured image

Credence and Chance in a Pluralist Approach to Quantum Theories

This project develops novel technical results about the probabilities appearing in quantum mechanics that bridge and support several different interpretations of what that theory …

Everettian chance in no uncertain terms featured image

Everettian chance in no uncertain terms

We unify Everettian accounts of chance by focusing on the conditions under which branches are isolated.

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Jer Steeger
Classical limits of Hilbert bimodules as symplectic dual pairs featured image

Classical limits of Hilbert bimodules as symplectic dual pairs

Hilbert bimodules are morphisms between C*-algebraic models of quantum systems, while symplectic dual pairs are morphisms between Poisson geometric models of classical systems. …

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Benjamin Feintzeig
An accuracy-based approach to quantum conditionalization featured image

An accuracy-based approach to quantum conditionalization

A core tenet of Bayesian epistemology is that rational agents update by conditionalization. Accuracy arguments in favour of this norm are well-known. Meanwhile, scholars working in …

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Alexander Meehan
One world is (probably) just as good as many featured image

One world is (probably) just as good as many

I argue that we can use symmetries of the quantum state space to derive chance values in the de Broglie–Bohm pilot-wave theory.

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Jer Steeger
Two Forms of Inconsistency in Quantum Foundations featured image

Two Forms of Inconsistency in Quantum Foundations

Recently, there has been some discussion of how Dutch Book arguments might be used to demonstrate the rational incoherence of certain hidden variable models of quantum theory. In …

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Jer Steeger
Extensions of bundles of C*-algebras featured image

Extensions of bundles of C*-algebras

Bundles of C*-algebras can be used to represent limits of physical theories whose algebraic structure depends on the value of a parameter. The primary example is the ℏ → 0 limit of …

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Jer Steeger
Is the classical limit “singular”? featured image

Is the classical limit “singular”?

We argue against claims that the classical ℏ → 0 limit is “singular” in a way that frustrates an eliminative reduction of classical to quantum physics. We show one precise sense in …

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Jer Steeger
Probabilism for stochastic theories featured image

Probabilism for stochastic theories

I defend an analog of probabilism that characterizes rationally coherent estimates for chances. Specifically, I demonstrate the following accuracy-dominance result for stochastic …

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Jer Steeger