John Dumancic's user avatar
John Dumancic's user avatar
John Dumancic's user avatar
John Dumancic
  • Member for 7 years, 11 months
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104 votes
2 answers
8k views

Is there such thing as imaginary time dilation?

20 votes
3 answers
5k views

Does Heat Cause Time Dilation?

19 votes
2 answers
2k views

Why do we not observe a greater Casimir force than we do?

4 votes
2 answers
260 views

Wouldn't a photon disappear because of length contraction? [duplicate]

3 votes
1 answer
182 views

Understanding Shankar's standard deviation: Is $\langle\psi|\Omega|\psi\rangle$ shorthand for $\langle\psi|\Omega|\psi\rangle I$?

2 votes
2 answers
641 views

Standard Model Lagrangian and Euler-Lagrange Equations

2 votes
2 answers
514 views

Discretizing the Action for Feynman Path Integral

2 votes
3 answers
3k views

The electromagnetic field tensor in curvilinear coordinate systems

2 votes
4 answers
1k views

The physical meaning of the cross-term of Kerr metric

2 votes
1 answer
186 views

How to compute normalization of one-particle states for Klein-Gordon field quantization

1 vote
3 answers
736 views

Recommended Textbook for Heisenberg Picture

1 vote
2 answers
209 views

In an accelerating reference frame, does the angular acceleration of a rolling wheel change?

1 vote
1 answer
204 views

$g^{\mu\nu}g_{\alpha\beta}$=?

1 vote
1 answer
201 views

Embedding manifold equipped with FLRW metric

1 vote
0 answers
43 views

Simple Pendulum with Arbitrary Velocity

1 vote
1 answer
178 views

Quantum Harmonic Oscillator- Solving the Differential Equation at a Limit

1 vote
1 answer
234 views

How does one add matter coupling terms to the linearized Lagrangian for General Relativity?

1 vote
0 answers
445 views

Deriving the effective potential from the Schwarzschild metric

0 votes
0 answers
82 views

Why does this method of deriving the classical free particle Lagrangian not work?

0 votes
1 answer
320 views

Dimensionality of a Hilbert Space: Countable or Uncountable? [duplicate]

0 votes
1 answer
56 views

What is the function for the magnitude of air resistance/drag?

0 votes
3 answers
7k views

Are light waves sinusoidal functions? [duplicate]

0 votes
0 answers
55 views

Negative Mass's Effect on Gravitational Time Dilation [duplicate]

-1 votes
2 answers
141 views

Understanding Conservation of Momentum in Multiple Particle Systems