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Save momentum in Langevin simulations #4

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axsk opened this issue Jun 30, 2023 · 2 comments
Closed

Save momentum in Langevin simulations #4

axsk opened this issue Jun 30, 2023 · 2 comments

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@axsk
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axsk commented Jun 30, 2023

Currently we re-seed momentum on each (short) tractory, which leads to unphysical results.

This requires to decouple NN input/data from the underlying simulation data, as the former doesn't require the momentum.

Look at the work done in IsoMu.jl
@axsk
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axsk commented Nov 28, 2023

Actually sampling from Boltzmann is not really wrong, so maybe there is no need for this after all?

@axsk
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axsk commented Feb 8, 2024

The current opinion on this is: Resampling from Boltzmann anew everytime is statisically correct and results in faster mixing

@axsk axsk closed this as completed Feb 8, 2024
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@axsk