User user1504

112 votes

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What's the point of Hamiltonian mechanics?

answered Dec 5, 2013 at 2:20

71 votes

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Rigged Hilbert space and QM

answered Nov 6, 2012 at 3:30

61 votes

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What does CERN do with its electrons?

answered May 14, 2020 at 17:03

36 votes

Quantum Field Theory from a mathematical point of view

answered Oct 13, 2011 at 3:45

34 votes

Amplitude of an electromagnetic wave containing a single photon

answered Dec 18, 2012 at 3:05

32 votes

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How to interpret correlation functions in QFT?

answered Aug 11, 2016 at 17:58

27 votes

What is the definition of correlation length for the Ising model?

answered Apr 1, 2013 at 13:59

26 votes

Wick rotation in field theory - rigorous justification?

answered Apr 29, 2014 at 0:13

25 votes

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Is the electromagnetic spectrum discrete?

answered Aug 12, 2013 at 14:37

24 votes

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Would a spin-2 particle necessarily have to be a graviton?

answered Oct 10, 2012 at 14:20

23 votes

Rigorous approaches to quantum field theory

answered Jan 19, 2013 at 1:14

22 votes

Why do we care about black hole interiors' physics?

answered Apr 10, 2013 at 19:59

21 votes

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What's the relation between perturbative and nonperturbative QFT?

answered Jul 31, 2012 at 12:03

20 votes

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Is the graviton hypothetical?

answered Jun 16, 2014 at 21:18

18 votes

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Local and Global Symmetries

answered Jan 3, 2013 at 2:33

16 votes

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Eigenvalues of a quantum field?

answered Jan 5, 2013 at 5:33

16 votes

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Why isn't Quantum Yang-Mills Rigorous?

answered Jun 24, 2014 at 0:39

16 votes

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Are "confinement" and "asymptotic freedom" two sides of the same coin?

answered Mar 7, 2014 at 21:03

15 votes

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Ж ("zhe") in string theory?

answered Jan 19, 2014 at 12:57

15 votes

Canonical everyday-life example of a technology that could not work without humans mastering QM in analogy to the application of GR in GPS?

answered Jul 10, 2013 at 11:37

15 votes

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What are Wightman fields/functions

answered Nov 13, 2012 at 15:20

14 votes

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Semantic problem about renormalizability

answered Dec 4, 2013 at 1:12

14 votes

What is the difference between the dimension of a group and the dimension of its representation?

answered Mar 17, 2018 at 1:02

13 votes

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How do I define time-ordering for Wightman functions?

answered Nov 18, 2012 at 14:17

13 votes

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Gauge fixing and degrees of freedom

answered Jul 24, 2013 at 20:26

12 votes

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Are there rigorous constructions of the path integral for lattice QFT on an infinite lattice?

answered Oct 17, 2011 at 22:15

12 votes

In what sense is SUSY a spacetime symmetry?

answered Jun 22, 2012 at 3:37

11 votes

Haag's theorem and practical QFT computations

answered Jun 26, 2013 at 18:58

11 votes

Is it possible that the LIGO results are anomalies?

answered Apr 12, 2018 at 19:49

11 votes

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How do we know from representation theory that a massless spin-1 particle has only two polarizations?

answered Jun 4, 2020 at 15:20

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248 Answers

What's the point of Hamiltonian mechanics?

Rigged Hilbert space and QM

What does CERN do with its electrons?

Quantum Field Theory from a mathematical point of view

Amplitude of an electromagnetic wave containing a single photon

How to interpret correlation functions in QFT?

What is the definition of correlation length for the Ising model?

Wick rotation in field theory - rigorous justification?

Is the electromagnetic spectrum discrete?

Would a spin-2 particle necessarily have to be a graviton?

Rigorous approaches to quantum field theory

Why do we care about black hole interiors' physics?

What's the relation between perturbative and nonperturbative QFT?

Is the graviton hypothetical?

Local and Global Symmetries

Eigenvalues of a quantum field?

Why isn't Quantum Yang-Mills Rigorous?

Are "confinement" and "asymptotic freedom" two sides of the same coin?

Ж ("zhe") in string theory?

Canonical everyday-life example of a technology that could not work without humans mastering QM in analogy to the application of GR in GPS?

What are Wightman fields/functions

Semantic problem about renormalizability

What is the difference between the dimension of a group and the dimension of its representation?

How do I define time-ordering for Wightman functions?

Gauge fixing and degrees of freedom

Are there rigorous constructions of the path integral for lattice QFT on an infinite lattice?

In what sense is SUSY a spacetime symmetry?

Haag's theorem and practical QFT computations

Is it possible that the LIGO results are anomalies?

How do we know from representation theory that a massless spin-1 particle has only two polarizations?