User John Dumancic

105 votes

2 answers

7k views

Is there such thing as imaginary time dilation?

asked May 9, 2016 at 1:04

19 votes

2 answers

2k views

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

asked Jan 23, 2021 at 18:01

18 votes

3 answers

4k views

Does Heat Cause Time Dilation?

asked May 27, 2016 at 13:44

3 votes

2 answers

230 views

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

asked Jul 15, 2016 at 0:40

3 votes

1 answer

132 views

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

asked Jul 20, 2019 at 2:16

2 votes

2 answers

397 views

Standard Model Lagrangian and Euler-Lagrange Equations

asked Sep 24, 2019 at 19:37

2 votes

2 answers

308 views

Discretizing the Action for Feynman Path Integral

asked Nov 5, 2019 at 23:46

2 votes

3 answers

3k views

The electromagnetic field tensor in curvilinear coordinate systems

asked Feb 21, 2017 at 0:15

2 votes

3 answers

770 views

The physical meaning of the cross-term of Kerr metric

asked Mar 1, 2017 at 18:03

1 vote

1 answer

140 views

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

asked Jun 25, 2019 at 20:39

1 vote

1 answer

115 views

Embedding manifold equipped with FLRW metric

asked Dec 2, 2019 at 17:48

1 vote

0 answers

36 views

Simple Pendulum with Arbitrary Velocity

asked Dec 13, 2019 at 21:25

1 vote

1 answer

139 views

Quantum Harmonic Oscillator- Solving the Differential Equation at a Limit

asked Sep 10, 2019 at 17:03

1 vote

1 answer

112 views

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

asked Sep 22, 2020 at 17:48

1 vote

0 answers

297 views

Deriving the effective potential from the Schwarzschild metric

asked Sep 23, 2020 at 1:29

1 vote

3 answers

564 views

Recommended Textbook for Heisenberg Picture

asked Jan 16, 2017 at 2:35

1 vote

1 answer

100 views

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

asked Jan 12, 2021 at 2:16

0 votes

1 answer

113 views

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

asked Mar 19, 2021 at 16:45

0 votes

0 answers

66 views

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

asked Nov 17, 2020 at 21:18

0 votes

1 answer

126 views

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

asked Jun 14, 2020 at 2:22

0 votes

1 answer

43 views

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

asked Jun 25, 2020 at 13:20

0 votes

3 answers

6k views

Are light waves sinusoidal functions? [duplicate]

asked Jun 1, 2016 at 17:00

0 votes

0 answers

55 views

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

asked May 9, 2016 at 13:50

-1 votes

2 answers

137 views

Understanding Conservation of Momentum in Multiple Particle Systems

asked Oct 26, 2016 at 23:40

Stack Exchange Network

24 Questions

Is there such thing as imaginary time dilation?

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

Does Heat Cause Time Dilation?

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

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

Standard Model Lagrangian and Euler-Lagrange Equations

Discretizing the Action for Feynman Path Integral

The electromagnetic field tensor in curvilinear coordinate systems

The physical meaning of the cross-term of Kerr metric

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

Embedding manifold equipped with FLRW metric

Simple Pendulum with Arbitrary Velocity

Quantum Harmonic Oscillator- Solving the Differential Equation at a Limit

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

Deriving the effective potential from the Schwarzschild metric

Recommended Textbook for Heisenberg Picture

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

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

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

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

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

Are light waves sinusoidal functions? [duplicate]

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

Understanding Conservation of Momentum in Multiple Particle Systems