All Questions
13
questions
0
votes
2
answers
645
views
Can we regard metric as the Higgs field of gravity?
The longer version of the question is: should we regard special relativity just as a spontaneous symmetry breaking phase of general relativity, driven by the non-zero vacuum expectation value (VEV) of ...
- 4,452
1
vote
0
answers
45
views
Does strongly gravitating object travel along geodesic of a background field？ [closed]
That test particles travel along the geodesic is assumed in the context of GR. But does it apply to strongly gravitating object, such as black hole in an expanding universe, binary neutron star, etc.? ...
- 619
0
votes
2
answers
118
views
Does the mass of a moving object in empty space with a constant velocity change within its own frame of reference from its rest mass?
I believe that a constant velocity moving object in empty space within it own frame of reference retains its rest mass as long as it is moving at constant velocity and an effective mass increase ...
- 4,170
1
vote
2
answers
128
views
Is $\frac{dE}{dt}=0$ in an accelerating particle’s instantaneous rest frame?
My special relativity book uses an argument that involves $\frac{dE}{dt}=0$ in an accelerating particles rest frame (to show a force parallel to a particles velocity is parallel in all frames).
...
- 2,604
2
votes
2
answers
239
views
Does an observer moving in a circle with constant angular velocity in space experience GR gravitational time dilation?
Assuming that there are no other planets or other gravitational sources around the observer in empty space, would the observer's very fast circular motion create GR gravitational or else called ...
- 4,170
1
vote
1
answer
84
views
What happens when a galactic body gets bigger?
In my simple non-quantum non-nuclear but enthusiasm-filled mind, I fascinate that as a galactic body become much more massive, it can reduce matter first down to its building blocks, then eventually ...
- 137
0
votes
1
answer
78
views
Moving particle with GR not taken into account vs GR taken into account
If we imagine a lightwave moving through space without considering how the space is deformed due to the energy and momentum of the light, we would find it redshifted once we take GR into account ...
- 631
1
vote
1
answer
41
views
Question about relative velocity and black hole formation in a fixed target experiment
In a given frame S, consider an inelastic collision between a particle A and a fixed target B. In frame S, the relative velocity of A (and thus the kinetic energy) to an observer in frame S is not ...
- 100
-1
votes
1
answer
57
views
What does the photon feel when it hits an asteroid on its path to earth [duplicate]
If a photon was approaching earth, after 1 minute(from earths reference frame) an asteroid comes on the photons path. And it hits the asteroid, but from the photons reference frame time doesn't pass ...
6
votes
1
answer
205
views
Spin statistical theorem in curved spacetime
In Wikipedia
https://en.wikipedia.org/wiki/Spin%E2%80%93statistics_theorem?wprov=sfti1
It states that
“The proof requires the following assumptions:
The theory has a Lorentz-invariant Lagrangian.
...
- 341
0
votes
1
answer
238
views
Does an object traveling near the speed of light create a gravitaional field? [duplicate]
Does a particle traveling near the speed of light create an observable/measureable gravitational field around it? I know most elementary particles travel near the speed of light and have no ...
0
votes
0
answers
466
views
Relativistic Black Hole? [duplicate]
So recently, looking at high energy particles through the lens of General and Special Relativity has peaked my interest. One thing I was considering, using the electron as the first example, is as ...
- 1,049
3
votes
2
answers
3k
views
Graviton and photons interaction
If one believes in the theory of gravitons then by viewing a black hole you see gravitons affect photons. This in turn leads to the conclusion that force carrier's mass equivalences allow them to be ...
- 141