Binary Black Holes
A GENERIC Approach
Ref Bari
Advisor: Prof. Brendan Keith









Energy of Particle:
Energy taken away by Gravitational Wave:
t | h |
---|---|
1.155987123132360184e+00 | -5.609346551357122235e-02 |
2.285489553960637910e+00 | -6.036403746984250751e-02 |
3.402211606323863879e+00 | -6.318515807196223300e-02 |
4.523268886770305031e+00 | -6.485891351192739351e-02 |
5.651430592468121183e+00 | -6.641091336216202456e-02 |
Raw SXS Data
2021 SXS Waveform
t | h |
---|---|
1.155987123132368399e+00 | -5.717062632140130357e-02 |
2.285489553960653897e+00 | -6.130264068534922728e-02 |
3.402211606323888304e+00 | -6.379464706226181669e-02 |
4.523268886770337005e+00 | -6.530329070047019568e-02 |
5.651430592468161151e+00 | -6.716188456065923240e-02 |


Energy of Particle:
Energy taken away by Gravitational Wave:
Total Energy of System:

Energy of Particle:
Energy taken away by Gravitational Wave:
Total Energy of System:



Energy of Particle:
Energy taken away by Gravitational Wave:
Total Energy of System:

Energy of Particle:
Energy taken away by Gravitational Wave:
GENERIC
What should our energy functional E(x)Â be?
What should our entropy functional S(x)Â be?
What should our friction matrix M be?
Should reduce to conservative dynamics if "T=0"
Should conserve the total energy of the closed system
Energy of Particle:
Energy taken away by Gravitational Wave:
Poisson Matrix
Energy Functional
Friction Matrix
Entropy Functional
Energy of Particle:
Energy taken away by Gravitational Wave:
Energy Functional
Friction Matrix
Entropy Functional

L
Energy of Particle:
Energy taken away by Gravitational Wave:
Friction Matrix
Entropy Functional
L

E
Energy of Particle:
Energy taken away by Gravitational Wave:
Entropy Functional
L

E
M
Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S
Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S
Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S
Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S

Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S

Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S

Energy of Particle:
Energy taken away by Gravitational Wave:
L
E
M

S
Simplification:Â




No Neural Network
Neural Network


Neural Network

Neural Network
Neural Network

NN = Chain(
Dense(2, 4, tanh),
Dense(4, 4, tanh),
Dense(4, 1),
)
M15 = -1 * (250) * (log(1+exp(nn_schwarzschild[1]))) * (1/x[2]^3)
Dissipation = [
0, # t
M15, # r
0, # θ
M25, # Ï•
0, # p_t
M35, # p_r
0, # p_θ
M45] # p_Ï•
du_dτ = Conservative + Dissipation
Energy of Particle:
Energy taken away by Gravitational Wave:
Entropy Functional
L

E
M
Introduction to GENERIC






























































Binary Black Holes | 08/25 Update
By Ref Bari
Binary Black Holes | 08/25 Update
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