@@ -37,7 +37,7 @@ The phase correction used here has the form:
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@@ -37,7 +37,7 @@ The phase correction used here has the form:
The difference stems from the 2 points:
The difference stems from the 2 points:
1. The correction is parametrized in terms of $` A_{\alpha,eff}`$ instead of $` \lambda_{A,eff}`$
1. The correction is parametrized in terms of $` A_{\alpha,eff}`$ instead of $` \lambda_{A,eff}`$
2. The correction used in lal inference was derived using phase velocity, while this one uses group velocity, following `https://dcc.ligo.org/DocDB/0182/P2200154/001/GW_phase_degeneracies.pdf`.
2. The correction used in lal inference was derived using phase velocity, while this one uses group velocity, following `https://arxiv.org/pdf/2203.13252.pdf`.
## Reparametrizing phase velocity correction in terms of A
## Reparametrizing phase velocity correction in terms of A
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@@ -64,12 +64,12 @@ and then follow the steps of route 1.
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@@ -64,12 +64,12 @@ and then follow the steps of route 1.
## Parametrization in terms of group velocity.
## Parametrization in terms of group velocity.
Reference `https://dcc.ligo.org/DocDB/0182/P2200154/001/GW_phase_degeneracies.pdf` derives the LIV correction if one uses group velocity instead of phase velocity. The result is eq. 2.9:
Reference `https://arxiv.org/pdf/2203.13252.pdf` derives the LIV correction if one uses group velocity instead of phase velocity. The result is eq. 2.9:
The paper uses $`\hbar=1`$ and does not include $'c'$ in the definition of $`D_\alpha`$ (so it is in units of time). Accounting for these, the phase correction becomes:
The paper uses $`\hbar=1`$ - accounting for it, the phase correction becomes: