Can Dark Energy Be Described as a Force?

Quarlep
Messages
257
Reaction score
4
1/2 mv2 kinetic energy of expansion and force will beΩ
m(dv/dt)=m((dH/dt)D+H2D). Thats the force of expansion. But have can we describe the force of dark energy ? I thought F=P/S P=ωρc2 then force will be F=-ρc2/R2 am I right ? (ρ=dark energy density)
 
Astronomy news on Phys.org
Quarlep said:
1/2 mv2 kinetic energy of expansion and force will beΩ
m(dv/dt)=m((dH/dt)D+H2D). Thats the force of expansion.

No, it isn't. Expansion is not a force; objects which are moving with the Hubble flow are moving along geodesics, with no applied force at all.

Quarlep said:
can we describe the force of dark energy ?

Dark energy isn't a force either; it's just a contribution to the overall spacetime geometry that determines the Hubble flow.
 
Cant we show them like force I know there's no force theorytically
 
Quarlep said:
Cant we show them like force I know there's no force theorytically

No. "Force" would imply either non-geodesic motion, or a non-inertial frame in which a comoving object's coordinate acceleration was nonzero. Neither of those applies to what you are suggesting.
 

Similar threads

  • · Replies 0 ·
Replies
0
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 29 ·
Replies
29
Views
5K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 134 ·
5
Replies
134
Views
13K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K