About the Einstein tensor

706
8

Main Question or Discussion Point

What are the appropriate units for the left half of the GR equation? Meters? square meters..? To put it another way, what exactly is being quantified?
 

Answers and Replies

Mentz114
Gold Member
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The same as the right hand side, [tex]\kappa T^{\mu\nu}[/tex]
 
Ich
Science Advisor
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It's a measurement of curvature, in [tex]m^{-2}[/tex].
 
706
8
Thanks, Ich. That's the answer I was looking for.
 
Ich
Science Advisor
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I guess Mentz114 just wanted to motivate you to find it out yourself. It's not difficult.
 
pervect
Staff Emeritus
Science Advisor
Insights Author
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Note that Ich's answer assumes that geometric units are being used, which is very common, but perhaps not quite universal.
 
Ich
Science Advisor
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Note that Ich's answer assumes that geometric units are being used, which is very common, but perhaps not quite universal.
I double-checked and found the units to be SI-consistent, as long as T is measured in J/m³.
 

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