Can Dark Energy Be Described as a Force?

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The discussion centers on whether dark energy can be described as a force. It is clarified that expansion is not a force, as objects in the Hubble flow move along geodesics without any applied force. Dark energy is characterized as a contribution to spacetime geometry rather than a force. Attempts to frame dark energy in terms of force are rejected, emphasizing that such a description would imply non-geodesic motion, which does not apply. Ultimately, dark energy's role in the universe is defined by its influence on the expansion of space rather than as a traditional force.
Quarlep
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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)
 
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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.
 

Thread 'Estimates — True Size of the Universe?'

I always thought it was odd that we know dark energy expands our universe, and that we know it has been increasing over time, yet no one ever expressed a "true" size of the universe (not "observable" universe, the ENTIRE universe) by just reversing the process of expansion based on our understanding of its rate through history, to the point where everything would've been in an extremely small region. The more I've looked into it recently, I've come to find that it is due to that "inflation"...
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