Strýček Albert a pátrání po kvantech.

Abstract Primitive ontology (PO) approaches to quantum theory aim to describe the world in terms of matter distributed in 3-space (the PO). David Albert argues they cannot recover macroscopic structure without ad hoc coarse-graining (“squinting”). This paper formalises a Macro-Object Problem for the PO-approach based on Albert’s critique and enlists Contextual Bohmian Mechanics (CBM) to offer a solution. CBM augments the PO with a local context field $\Lambda (x,t)$ . While $\Lambda$ is fixed, the wavefunction $\Psi$ evolves unitarily and the particles Q follow a Bohmian guidance law; when $\Lambda$ changes on a bounded region R , a local completely positive instrument updates the state, with open-system energy bookkeeping and statistical locality outside R . I show that $\Lambda$ tiles spacetime into macro-object tokens, modulates the dynamics to confer genuine causal powers, and does so entirely within 3-space—thereby satisfying all the conditions for solving the Macro-Object Problem. I argue that physical objects are hylomorphic composites of both matter (hylē) and form (morphē), with matter corresponding to the particles and $\Lambda$ serving as a rigorous surrogate for local form.Abstract Primitive ontology (PO) approaches to quantum theory aim to describe the world in terms of matter distributed in 3-space (the PO). David Albert argues they cannot recover macroscopic structure without ad hoc coarse-graining (“squinting”). This paper formalises a Macro-Object Problem for the PO-approach based on Albert’s critique and enlists Contextual Bohmian Mechanics (CBM) to offer a solution. CBM augments the PO with a local context field $$\Lambda (x,t)$$ . While $$\Lambda$$ is fixed, the wavefunction $$\Psi$$ evolves unitarily and the particles Q follow a Bohmian guidance law; when $$\Lambda$$ changes on a bounded region R , a local completely positive instrument updates the state, with open-system energy bookkeeping and statistical locality outside R . I show that $$\Lambda$$ tiles spacetime into macro-object tokens, modulates the dynamics to confer genuine causal powers, and does so entirely within 3-space—thereby satisfying all the conditions for solving the Macro-Object Problem. I argue that physical objects are hylomorphic composites of both matter (hylē) and form (morphē), with matter corresponding to the particles and $$\Lambda$$ serving as a rigorous surrogate for local form.

TopoiMar 8, 20265 citations

Kvantová teorie : průvodce pro každého.

John Charlton Polkinghorne

Jan 1, 20070 citations

\Lambda (x,t)

. While

\Lambda

is fixed, the wavefunction

\Psi

evolves unitarily and the particles Q follow a Bohmian guidance law; when

\Lambda

changes on a bounded region R , a local completely positive instrument updates the state, with open-system energy bookkeeping and statistical locality outside R . I show that

\Lambda

tiles spacetime into macro-object tokens, modulates the dynamics to confer genuine causal powers, and does so entirely within 3-space—thereby satisfying all the conditions for solving the Macro-Object Problem. I argue that physical objects are hylomorphic composites of both matter (hylē) and form (morphē), with matter corresponding to the particles and

\Lambda

serving as a rigorous surrogate for local form.