The Unspeakable Why

Cabello, Adán

doi:10.1007/978-3-319-38987-5_11

Cited by 1 publication

(1 citation statement)

References 23 publications

(30 reference statements)

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“…A quantum measurement device is like a prosthetic hand, and the outcome of a measurement is an unpredictable, undetermined "experience" shared between the agent and the external system. The latter part of this we see as the ultimate message of the Bell and Kochen-Specker theorems and their variants [53,54]-that when an agent reaches out and touches the world, a little moment of creation occurs in response. Quantum theory, thus, is no mirror image of what the world is, for "there is no one way the world is;" it is "still in creation, still being hammered out" [55, p. 742].…”

Section: The Moral He Drew Was Persuasivementioning

confidence: 98%

Notwithstanding Bohr, the Reasons for QBism

Fuchs¹

2017

Preprint

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Without Niels Bohr, QBism would be nothing. But QBism is not Bohr. This paper attempts to show that, despite a popular misconception, QBism is no minor tweak to Bohr's interpretation of quantum mechanics. It is something quite distinct. Along the way, we lay out three tenets of QBism in some detail: 1) The Born Rule-the foundation of what quantum theory means for QBism-is a normative statement. It is about the decision-making behavior any individual agent should strive for; it is not a descriptive "law of nature" in the usual sense.2) All probabilities, including all quantum probabilities, are so subjective they never tell nature what to do. This includes probability-1 assignments. Quantum states thus have no "ontic hold" on the world. 3) Quantum measurement outcomes just are personal experiences for the agent gambling upon them. Particularly, quantum measurement outcomes are not, to paraphrase Bohr, instances of "irreversible amplification in devices whose design is communicable in common language suitably refined by the terminology of classical physics." Finally, an explicit comparison is given between QBism and Bohr with regard to three subjects: a) The issue of the "detached observer" as it arose in a debate between Pauli and Bohr, b) Bohr's reply to Einstein, Podolsky, and Rosen, and c) Bohr's mature notion of "quantum phenomena." At the end, we discuss how Bohr's notion of phenomena may have something to offer the philosophy of William James: A physics from which to further develop his vision of the world-call it an ontology if you will-in which "new being comes in local spots and patches."

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Section: The Moral He Drew Was Persuasivementioning

confidence: 98%

Notwithstanding Bohr, the Reasons for QBism

Fuchs¹

2017

Preprint

View full text Add to dashboard Cite

show abstract

The Unspeakable Why

Cited by 1 publication

References 23 publications

Notwithstanding Bohr, the Reasons for QBism

Notwithstanding Bohr, the Reasons for QBism

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