User M.N.Raia

8 votes

3 answers

1k views

Question about manifolds and coordinate transformations

asked Oct 18, 2017 at 7:14

8 votes

2 answers

550 views

Silly doubt about tidal effects and Einstein Field Equations

asked Jun 19, 2019 at 11:41

6 votes

2 answers

697 views

About physical meaning of Hausdorff, Second Countable and Paracompact conditions of Manifold Theory

asked Jul 7, 2019 at 3:47

6 votes

1 answer

445 views

Silly question about kinematics and Christoffel symbols

asked Oct 14, 2018 at 0:09

6 votes

4 answers

1k views

Question on connections in general relativity and particle physics

asked Dec 26, 2021 at 21:21

5 votes

1 answer

417 views

A Doubt on Covariant Derivatives and Particle Physics

asked Mar 8, 2021 at 2:01

5 votes

3 answers

290 views

Silly question about Galilei Group

asked Jul 28, 2017 at 1:07

5 votes

2 answers

302 views

Question about the Lie group $SU(3) \times SU(2) \times U(1)$ and the concept of manifold

asked Sep 27, 2019 at 18:19

4 votes

1 answer

545 views

What is an vacuum in QFT in curved spacetime?

asked Sep 17, 2019 at 9:55

4 votes

2 answers

304 views

Question about the "wave function" on Relativistic Quantum Mechanics (RQM) and Quantum Field Theory (QFT)

asked Jul 27, 2019 at 17:25

4 votes

2 answers

4k views

Spring-Mass-Pendulum "via Newton's Laws"

asked May 4, 2017 at 3:40

4 votes

2 answers

231 views

Question about the true nature of the Spinor mathematical object [closed]

asked Oct 22, 2018 at 7:10

4 votes

4 answers

220 views

Doubt on the need for Topological Manifolds [closed]

asked Sep 9, 2020 at 22:18

4 votes

1 answer

240 views

Gravitational Collapse: Kerr solution is a vacuum solution but not for any rotating body?

asked Oct 4, 2020 at 3:17

4 votes

0 answers

73 views

Am I seeing a particle orbiting a Morris-Thorne Wormhole? [duplicate]

asked Nov 1, 2020 at 4:29

4 votes

1 answer

112 views

Is there somesort of "recipe" to check if an spacetime exibit the Unruh effect?

asked Oct 14, 2019 at 2:08

4 votes

2 answers

670 views

Single astrophysical object or a cosmological solution?: A doubt on Einstein Field Equation solutions

asked May 18, 2020 at 2:32

4 votes

1 answer

188 views

Special relativity and general relativity: are the local charts affine spaces?

asked Mar 1, 2021 at 14:34

3 votes

3 answers

1k views

A doubt on calculation of tetrad basis vectos of a non-diagonal metric tensor

asked Jun 30, 2020 at 21:10

3 votes

0 answers

28 views

Question on apparent super efficiency of the magnetic penrose process

asked Jul 25 at 6:32

3 votes

2 answers

200 views

Silly question about a realization given by gravitomagnetism: could there exist a "apparent gravitational magnet"?

asked May 19, 2020 at 21:56

3 votes

1 answer

156 views

A Doubt on Hawking Radiation: What Birrell wants to say here?

asked Apr 20, 2021 at 14:51

3 votes

0 answers

80 views

Tetrad basis: a doubt on "Comoving" and "Static" tetrads

asked Jan 23, 2021 at 22:52

3 votes

3 answers

313 views

Doubt about the vacua equations of General Relativity

asked Nov 8, 2018 at 19:53

3 votes

2 answers

1k views

How can a comoving observer be "privileged"?

asked Jun 23, 2018 at 11:14

3 votes

0 answers

81 views

Question about the travel time of a ship "using" a warp drive metric

asked Aug 2, 2019 at 2:20

3 votes

3 answers

1k views

What are Connections in physics?

asked Jul 10, 2019 at 1:02

3 votes

0 answers

240 views

Question about Ricci Rotation Coeficients

asked Feb 17, 2019 at 23:38

3 votes

0 answers

157 views

Doubt about energy conditions: the Time-like Convergence Condition

asked Mar 15, 2019 at 18:57

2 votes

3 answers

383 views

The chain rule and velocity transformation in relativity

asked Mar 29, 2019 at 11:26

Stack Exchange Network

140 Questions

Question about manifolds and coordinate transformations

Silly doubt about tidal effects and Einstein Field Equations

About physical meaning of Hausdorff, Second Countable and Paracompact conditions of Manifold Theory

Silly question about kinematics and Christoffel symbols

Question on connections in general relativity and particle physics

A Doubt on Covariant Derivatives and Particle Physics

Silly question about Galilei Group

Question about the Lie group $SU(3) \times SU(2) \times U(1)$ and the concept of manifold

What is an vacuum in QFT in curved spacetime?

Question about the "wave function" on Relativistic Quantum Mechanics (RQM) and Quantum Field Theory (QFT)

Spring-Mass-Pendulum "via Newton's Laws"

Question about the true nature of the Spinor mathematical object [closed]

Doubt on the need for Topological Manifolds [closed]

Gravitational Collapse: Kerr solution is a vacuum solution but not for any rotating body?

Am I seeing a particle orbiting a Morris-Thorne Wormhole? [duplicate]

Is there somesort of "recipe" to check if an spacetime exibit the Unruh effect?

Single astrophysical object or a cosmological solution?: A doubt on Einstein Field Equation solutions

Special relativity and general relativity: are the local charts affine spaces?

A doubt on calculation of tetrad basis vectos of a non-diagonal metric tensor

Question on apparent super efficiency of the magnetic penrose process

Silly question about a realization given by gravitomagnetism: could there exist a "apparent gravitational magnet"?

A Doubt on Hawking Radiation: What Birrell wants to say here?

Tetrad basis: a doubt on "Comoving" and "Static" tetrads

Doubt about the vacua equations of General Relativity

How can a comoving observer be "privileged"?

Question about the travel time of a ship "using" a warp drive metric

What are Connections in physics?

Question about Ricci Rotation Coeficients

Doubt about energy conditions: the Time-like Convergence Condition

The chain rule and velocity transformation in relativity