# Why QBism Is Not the Copenhagen Interpretation and What John Bell Might Have Thought of It

@article{Mermin2017WhyQI, title={Why QBism Is Not the Copenhagen Interpretation and What John Bell Might Have Thought of It}, author={N. David Mermin}, journal={arXiv: Quantum Physics}, year={2017}, pages={83-93} }

Christopher Fuchs and Rudiger Schack have developed a way of understanding science, which, among other things, resolves many of the conceptual puzzles of quantum mechanics that have vexed people for the past nine decades. They call it QBism. I speculate on how John Bell might have reacted to QBism, and I explain the many ways in which QBism differs importantly from the orthodox ways of thinking about quantum mechanics associated with the term “Copenhagen interpretation.”

## 47 Citations

Darwinism in disguise? A comparison between Bohr's view on quantum mechanics and QBism

- Mathematics, MedicinePhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2016

This paper attempts to lay out Niels Bohr's pragmatic approach to science in general and to quantum physics in particular, and concludes that there are important differences.

On Quantum Bayesianism

- Physics
- 2020

The lately developed part of Quantum Bayesianism named QBism has been proclaimed by its authors a powerful interpretation of Quantum Physics. This article presents analysis of some aspects of QBism.…

The (Quantum) Measurement Problem in Classical Mechanics

- Physics
- 2020

In this work we analyze the deep link between the 20th Century positivist re-foundation of physics and the famous measurement problem of quantum mechanics. We attempt to show why this is not an…

On Modern Approaches to the Einsteinian View of Quantum States

- Mathematics
- 2016

Quantum mechanics notoriously faces the measurement problem, the problem that if read thoroughly, it implies the
nonexistence of deﬁnite outcomes in measurement procedures. A plausible reaction to…

On Probabilities in the Many Worlds Interpretation of Quantum Mechanics † U niversity of C ologne

- 2016

Quantum Mechanics notoriously faces a measurement problem, the problem that the unitary time evolution, encoded in its dynamical equations, together with the kinematical structure of the theory…

Is QBism a Possible Solution to the Conceptual Problems of Quantum Mechanics

- Computer Science, Physics
- 2019

This work will examine if QBism's claims are robust and will show that a certain number of issues needs to be clarified in order to get a coherent picture.

The Reality of the Wavefunction: Old Arguments and New

- PhysicsSynthese Library
- 2019

The recent philosophy of Quantum Bayesianism, or QBism, represents an attempt to solve the traditional puzzles in the foundations of quantum theory by denying the objective reality of the quantum…

Bohr, QBism, and Beyond

- Mathematics, Physics
- 2019

QBism may be the most significant contribution to the search for meaning in quantum mechanics since Bohr, even as Bohr's philosophy remains the most significant revision of Kant's theory of science.…

Notwithstanding Bohr, the Reasons for QBism

- Physics, Mathematics
- 2017

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…

QBism, FAPP and the Quantum Omelette. (Or, Unscrambling Ontological Problems from Epistemological Solutions in QM)

- Mathematics, Physics
- 2016

In this paper we discuss the so called "quantum omelette" created by Bohr and Heisenberg through the mix of (ontic) objective accounts and (epistemic) subjective ones within the analysis of Quantum…