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Sanya
  • Member for 6 years, 2 months
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145 votes
2 answers
25k views

Does the Planck scale imply that spacetime is discrete?

  • 3,601
54 votes
3 answers
3k views

Are there exact analytical solutions to the electronic states of the hydrogen molecular ion $\mathrm H_2^+$?

47 votes
8 answers
36k views

Books for Condensed Matter after Ashcroft/Mermin

  • 3,716
43 votes
3 answers
8k views

What are quantum fields mathematically?

27 votes
1 answer
6k views

Noether's Theorem and scale invariance

27 votes
3 answers
21k views

Any good resources for Lagrangian and Hamiltonian Dynamics?

24 votes
3 answers
3k views

The geometrical interpretation of the Poisson bracket

  • 447
20 votes
3 answers
1k views

Paradox of wavefunction collapse into an unphysical state

  • 15.5k
14 votes
2 answers
1k views

How can I adapt classical continuum mechanics equations in order to agree with general relativity?

  • 143
11 votes
2 answers
2k views

Physical interpretation of fields in QFT

10 votes
2 answers
438 views

Does mathematical sloppiness in quantum mechanics ever produce incorrect predictions?

  • 8,433
9 votes
2 answers
466 views

How does dividing by $T$ makes $\delta Q_{rev}$ an exact differential?

7 votes
2 answers
736 views

Life at low Reynolds number (E. M. Purcell)

  • 332
6 votes
3 answers
4k views

Angle of electric field lines leaving a postive charge and entering a negative charge in dipole

  • 167
6 votes
1 answer
266 views

Why we only need three independent unit to describe physics?

  • 223
6 votes
1 answer
142 views

How to judge the extent to which experiment supports a theory?

  • 3,639
6 votes
1 answer
119 views

Will an eventual discreteness of spacetime have consequences in the light of Noether's theorem?

5 votes
1 answer
127 views

What eigenvector-like tools are there for analyzing tensors of rank three and higher?

3 votes
1 answer
232 views

Non-glassy amorphous solids

  • 301
3 votes
1 answer
619 views

optimality of the Carnot cycle

  • 9,796
3 votes
0 answers
2k views

What is so special about octahedral stresses?

  • 41
3 votes
1 answer
164 views

Intuitive introduction to gauge symmetry for non-physicist?

  • 703
2 votes
1 answer
131 views

What's the physical explanation for the attenuation of sound in Newtonian fluid?

  • 389
2 votes
0 answers
527 views

Dipole of a Particle in Quantum Harmonic Potential Subject to Electric field

  • 4,034
2 votes
1 answer
38 views

Why is viscoelastic litosphere expected to behave as an elastic one in Nakada's Paradox?

  • 180
2 votes
3 answers
147 views

Why don't we constantly experience a mass dilation?

2 votes
0 answers
435 views

Exact solution of the Hubbard model in one-dimension

1 vote
1 answer
132 views

How does the continuity of $\bf A$ ascertain the parallel components $\boldsymbol\nabla(A_{i,1}-A_{i,2})$ being zero but not the normal one?

1 vote
1 answer
92 views

Difference in conduction in metals and semiconductors

1 vote
1 answer
46 views

Power expression for a dynamic force

  • 245