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Tobias Kienzler
  • Member for 11 years, 8 months
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105 votes
11 answers
16k views

Is there something similar to Noether's theorem for discrete symmetries?

53 votes
9 answers
7k views

Is a "third quantization" possible?

49 votes
5 answers
3k views

Is the world $C^\infty$?

43 votes
17 answers
5k views

Why does one experience a short pull in the wrong direction when a vehicle stops?

19 votes
1 answer
5k views

What is the definition of how to count degrees of freedom?

19 votes
2 answers
378 views

Can symmetry generators be used for quantization?

18 votes
4 answers
5k views

If all conserved quantities of a system are known, can they be explained by symmetries?

16 votes
2 answers
953 views

What colour is an electron?

14 votes
2 answers
1k views

Is a neutron star basically an isotope?

14 votes
3 answers
768 views

Are there models/simulations of antigravitational antimatter-galaxies?

12 votes
3 answers
1k views

Does the concept of a "momenton" make sense?

10 votes
1 answer
1k views

Imaginary time is to inverse temperature what imaginary entropy is to ...?

7 votes
2 answers
565 views

Why does $\mathcal L = -\frac14 F^{\mu\nu} F_{\mu\nu}$ imply Photons are massless?

6 votes
2 answers
398 views

Is Quantum Coulomb still singular?

6 votes
1 answer
1k views

How to correctly calculate the colour of the sky?

5 votes
2 answers
6k views

How to measure Entropy?

4 votes
1 answer
108 views

A nice overview (and maybe derivation) of the Poincaré transformations of the Vector Spherical Harmonics

3 votes
1 answer
1k views

Is the Gibbs-Duhem equation always valid?

2 votes
1 answer
59 views

What is an easily achievable way to have a fluid crawl or dry at ca. 30 mm/week = ca. 0.05 µm/s?

2 votes
1 answer
147 views

Can a laser-pumped laser cavity be laser-cooled by its pumping laser (and pump its pumping laser in return)? Is remote-cooling possible outside a lab?

1 vote
2 answers
189 views

Does time pass fastest in isolated, resting space?

0 votes
1 answer
152 views

How linearly additive are the x-ray mass attenuation coefficients for molecules?

0 votes
1 answer
41 views

What is/are the canonical notation(s) for multi-particle states? What are they mathematically?