[ET Trac] #2887: TwoPunctures does not support Slow-Start Lapse.

Zach Etienne trac-noreply at einsteintoolkit.org
Tue Sep 9 14:40:08 CDT 2025


#2887: TwoPunctures does not support Slow-Start Lapse.

 Reporter: Zach Etienne
   Status: new
Milestone: 
  Version: 
     Type: enhancement
 Priority: major
Component: 

Currently TwoPunctures offers several options for setting the initial lapse. None of these options are compatible with Slow-Start Lapse \[arXiv:2404.01137, Phys. Rev. D 110, 064045 \(2024\)\], which requires that the initial lapse be set to W=\(psi\+u\)^\{-2\}.

Here is the PR that resolves this issue:  
[https://bitbucket.org/einsteintoolkit/einsteininitialdata/pull-requests/21](https://bitbucket.org/einsteintoolkit/einsteininitialdata/pull-requests/21)

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2887/twopunctures-does-not-support-slow-start
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