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octonion
  • Member for 9 years, 8 months
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20 votes
Accepted

Where does the extra energy come from in an LC circuit?

10 votes
Accepted

The chirality of (2+1)D Dirac equation

10 votes

When we talk about the Higgs mechanism, is it a quantum effect?

10 votes

Why does the Dyson series have a 1/n! factor?

9 votes

How are anomalies possible?

7 votes

Error propagation with an integral

7 votes
Accepted

Random walk recurrence term and the self-energy

7 votes
Accepted

Quark composition of the neutral pion

7 votes
Accepted

Is Biot-Savart Law valid for time-varying currents unlike Ampere's law?

7 votes
Accepted

Helicity of Antiparticles

7 votes
Accepted

Why is Lattice QCD done in Euclidian 4-space?

6 votes
Accepted

Why does Kramer's theorem only apply to systems with an odd number of fermions?

6 votes

Why should there be one-particle states in an interacting quantum field theory?

6 votes
Accepted

What does it mean for a physical quantity if its mixed second partial derivatives are not equal?

5 votes

Weinberg QFT (2.5.5)

5 votes

Can you depict the electron's electromagnetic field?

5 votes

Why does normal ordering violate the Ward identity?

5 votes
Accepted

Entropy and tensor product

5 votes
Accepted

Can you apply product rule to arg of a bra-ket?

5 votes

formation of atomic nuclei from nucleons

5 votes
Accepted

The Klein-Gordon equation and the sign of the mass term

5 votes

Newton's 2nd law for rolling motion with changing moment of inertia

5 votes
Accepted

Kubo identity (electrical conductivity) integration

4 votes
Accepted

Harmonic oscillator partition function via Matsubara formalism

4 votes

Why 't Hooft says: field configuration in Euclidean space that have the vacuum (or a gauge transformation thereof) at the boundary

4 votes
Accepted

2$\pi$ Rotation on integer vs half-integer spin states

4 votes

Understanding the prefactor $\frac{\theta g^2}{32\pi^2}$ of the $F\tilde{F}$ term in Yang-Mills theories

4 votes
Accepted

Does one-dimensional ferromagnetic chain have long range order at zero tempreture?

4 votes

Why can large objects at greater distance be treated as a point particle?

4 votes
Accepted

Is it possible to define an energy momentum tensor for classical point particles from a QFT?

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