Questions tagged [quantum-mechanics]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
-2
votes
0answers
37 views

Gravity as a Fluid and Repulsive Force [on hold]

I have looked this up in depth including the work by Le sage and Fatio where they posited gravity as a repulsive force and based their calculations on gravity as particles in motion acting on ...
-1
votes
1answer
134 views

What is the final destiny of a photon?

What happens with a photon when it moves ouit of a galaxy into the 'infinity void', where there's nothing but 'darkness'? Does the photon decay in the end when there are no interactions?
2
votes
2answers
241 views

Is blue light not traveling faster then red light in space?

I just can't understand why light and other massless particles are not traveling at different speeds? Gravity effects anything with a mass but light has no mass but a black hole, and weak lensing ...
1
vote
0answers
74 views

Looking for a celestial body that weights ~$10^{17} kg$?

I am exploring the outcome of a problem assigned in a quantum mechanics homework where the mass of of some beam of "something" is insignificant to the result. So much so that something weighing ...
3
votes
2answers
180 views

Why do we use the Planck length?

We are not able to quantize spacetime and the theory of loop quantum gravity has been proved wrong but we still use the Planck length in astrophysics. Why?
-1
votes
1answer
25 views

Field excitement in quantum field theory? [closed]

How at the beginning of this universe the fields as proposed in quantum fields theory get excited?? How exactly these fields originated?
1
vote
1answer
197 views

Gravastar Star With no Horizon with ultracompact and very density possible?

Is that possible with some strange Quantum Effect could give rise to a completely new kind of a star? Gravastar(Gravitational Vacuum Star) an object hypothesized in astrophysics as an alternative to ...
0
votes
1answer
75 views

Which quantum reality will be seen in a future Earth [closed]

If we orbit near a black hole to travel to future and come back to Earth, which of the quantum realities will be observed in the future Earth? My question is regarding many worlds interpretation of ...
1
vote
1answer
85 views

Which quantum reality will be seen in a far away galaxy [closed]

I recently watched Brian Greene documentaries on parallel universes and am trying to wrap my brain around multiple quantum universes that form at every event and Einstein's relativity that in space-...
-1
votes
1answer
170 views

Contradiction of special theory of relativity and quantum mechanics

Why do special theory of relativty (with the core message of E=mc²) and quantum mechanics do not go together? Why is the special theory of relativity in the quantum model not valid? Can anyone list ...
0
votes
1answer
99 views

Question about stellar remnants

I know that after a star undergoes the process of mass loss, depending on the mass of the core the stellar remnants gets converted into a white dwarf star, neutron star or a black hole. Hence, if the ...
10
votes
1answer
528 views

Is there a better explanation of Hawking radiation?

I'm writing a piece on Hawking radiation, and find I have something of a problem. The "given" explanation which I find on Wikipedia and elsewhere is unsatisfactory: "Physical insight into the ...
1
vote
0answers
50 views

is it possible to prove some version of the “cosmic censorship hypothesis” of Roger Penrose which proposes that this is impossible?

Can singularities not hidden behind an event horizon, known as "naked singularities", arise from realistic initial conditions, or is it possible to prove some version of the "cosmic censorship ...
8
votes
2answers
894 views

Are white dwarf stars supported by proton degeneracy as well?

In general, fermions form a degenerate gas under high density or extremely low temperature. It's clear that white dwarf stars are supported by electron degeneracy pressure. However, there are still a ...