Six Textbook Mistakes in Quantum Field Theory

[Muu9]

TL;DR

"This article discusses incorrect statements appearing in textbooks on quantum field theory (QFT); some of these mistakes also appear in the research literature. The focus is not on errors made by an individual author, but on conceptual muddledness that is widespread in introductory textbooks."

https://arxiv.org/abs/2604.24871
Discussion on Reddit:

 

[pines-demon]

We should have more articles like these. Mistakes 2, 5 and 6 can be really misleading, however I was expecting more flagrant errors.
I would argue that mistake 1 is nit-picking and not truly a source of misconception (also the author does not provide a better picture for relativistic quantum mechanics). Mistake 3 is actually just a (good) suggestion.

Personally, I need to look more into mistake 4.

 

[gentzen]

We should have more articles like these.

https://arxiv.org/abs/quant-ph/0609163 (Quantum mechanics: Myths and facts, H. Nikolić)

 

[Demystifier]

https://arxiv.org/abs/quant-ph/0609163 (Quantum mechanics: Myths and facts, H. Nikolić)

I joined this forum soon after writing this paper, so this is how I have chosen my name.

 

[pines-demon]

I joined this forum soon after writing this paper, so this is how I have chosen my name.

Where is the discussion of this paper?

 

[Demystifier]

Where is the discussion of this paper?

I think there were a few, but I can find only this one:

Graduate Thread 'Quantum mechanics: Myths and facts'

Nov 9, 2006

A common understanding of quantum mechanics (QM) among students and practical users is often plagued by a number of "myths", that is, widely accepted claims on which there is not really a general consensus among experts in foundations of QM. These myths include wave-particle duality, time-energy uncertainty relation, fundamental randomness, the absence of measurement-independent reality, locality of QM, nonlocality of QM, the existence of well-defined relativistic QM, the claims that quantum field theory (QFT) solves the problems of relativistic QM or that QFT is a theory of particles, as...

• Demystifier
• Facts Mechanics Myths Quantum Quantum mechanics
• Replies: 37
• Forum: Quantum Physics