QBism and the Greeks: why a quantum state does not represent an element of physical reality

Christopher A. Fuchs; Ruediger Schack

QBism and the Greeks: why a quantum state does not represent an element of physical reality

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arxiv 1412.4211 v2 pith:RWFH6IDN submitted 2014-12-13 quant-ph

Christopher A. Fuchs , Ruediger Schack This is my paper · ORCID

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keywords qbismquantumelementgreeksphysicalrealityrepresentstate

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In QBism (or Quantum Bayesianism) a quantum state does not represent an element of physical reality but an agent's personal probability assignments, reflecting his subjective degrees of belief about the future content of his experience. In this paper, we contrast QBism with hidden-variable accounts of quantum mechanics and show the sense in which QBism explains quantum correlations. QBism's agent-centered worldview can be seen as a development of ideas expressed in Schr\"odinger's essay "Nature and the Greeks".

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Is Quantum Mechanics Universal? EWF Experiments and Non Absoluteness of Events
quant-ph 2026-05 unverdicted novelty 3.0 of 10

Convivial Solipsism is presented as a coherent interpretive framework that resolves the non-absoluteness of events in quantum mechanics while maintaining universality and intersubjectivity.

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