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2 votes
0 answers
66 views

ADM mass calculation for the BTZ black hole

Considering a non-rotating and non-charged 2+1 dimensional black hole, known as the BTZ black hole which obtained by adding a negative cosmological constant $\Lambda=-\frac{1}{l^2},l\ne0$ to the ...
Daniel Vainshtein's user avatar
4 votes
2 answers
127 views

ADM decomposition incompatible with black hole?

In establishing ADM or 3+1 decomposition, one starts with choosing a foliation $\Sigma_t$ where t is a scalar function and $\Sigma_t$ is demanded to be a spacelike slice, i.e. with time-like normal ...
Bowen Zhao's user avatar
3 votes
1 answer
429 views

How compute the mass of AdS-Schwarzschild by ADM mass formula?

I want to compute the mass of AdS schwarzschild by ADM mass formula but I could not find where I am wrong. AdS schwarzschild line element is : $$ ds^2 =-f dt^2 +\frac{dr^2}{f} +r^2 d\sigma^2_{d-1} $$ ...
Mojtaba's user avatar
  • 31
4 votes
1 answer
3k views

ADM mass of a black hole and mass of the associated matter

The ADM formalism gives a definition for the energy (Hamiltonian) of a static, asymptotically flat spacetime. This energy can be equated to the mass of the matter (for example, a black hole) which ...
nightmarish's user avatar
  • 3,203
6 votes
1 answer
722 views

Is ADM energy (momentum) conserved?

Energy is a slippery concept in GR, but in an asymptotically flat spacetime there is a perfectly reasonable concept of energy (indeed, several) which goes by the name the ADM energy: $$ E_\mathrm{ADM} ...
gj255's user avatar
  • 6,425