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alfred
  • Member for 5 years, 11 months
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7 votes
2 answers
963 views

What is the physical significance/interpretation of a vanishing Lie Derivative?

3 votes
2 answers
3k views

Propagator for Dirac spinor field

2 votes
0 answers
49 views

What is a Polariton and why are they useful in unconventional computing?

2 votes
1 answer
895 views

Interpretation of Normal Coordinates

2 votes
1 answer
388 views

Why is the Lagrangian for space-like geodesics equal to 1?

1 vote
1 answer
222 views

Notation - angular momentum for composite systems

1 vote
1 answer
1k views

Average magnetisation in the Ising Model

1 vote
1 answer
239 views

Interpretation of the quantum field in light of the interpretation of propagators

1 vote
3 answers
634 views

Time derivative of a real scalar field in the Schrödinger Picture

0 votes
0 answers
185 views

What exactly is the Leibnitz rule in General Relativity?

0 votes
2 answers
208 views

Does superheated water have the same temperature as boiling water at room pressure?

0 votes
1 answer
122 views

What experiments can measure the eigenvalues of the particle exchange operator