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Replace jnp.interp with interpax.interp1d in thermo.py #24

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Merged
cgiovanetti merged 1 commit into from
Jan 28, 2026
Merged

Replace jnp.interp with interpax.interp1d in thermo.py #24

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57 changes: 29 additions & 28 deletions linx/thermo.py
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Original file line number Diff line number Diff line change
@@ -1,10 +1,11 @@
import os
import os

import numpy as np

import jax.numpy as jnp
import jax.numpy as jnp
import jax.lax as lax
from jax import grad, vmap, device_put, devices
import interpax

import linx.const as const
from linx.special_funcs import Li, K1, K2
Expand Down Expand Up @@ -633,10 +634,10 @@ def p_massive_MB(T, mu, m, g):

file_dir = os.path.dirname(__file__)

# QED Corrections
P_QED_tab = np.loadtxt(file_dir+"/data/background/"+"QED_P_int.txt")
dPdT_QED_tab = np.loadtxt(file_dir+"/data/background/"+"QED_dP_intdT.txt")
d2PdT2_QED_tab = np.loadtxt(file_dir+"/data/background/"+"QED_d2P_intdT2.txt")
# QED Corrections - flip to ensure monotonically increasing T for interpax.interp1d
P_QED_tab = np.flip(np.loadtxt(file_dir+"/data/background/"+"QED_P_int.txt"), axis=0)
dPdT_QED_tab = np.flip(np.loadtxt(file_dir+"/data/background/"+"QED_dP_intdT.txt"), axis=0)
d2PdT2_QED_tab = np.flip(np.loadtxt(file_dir+"/data/background/"+"QED_d2P_intdT2.txt"), axis=0)

# Effect of standard value of electron mass in scattering matrix elements
f_nue_scat_tab = np.loadtxt(file_dir+"/data/background/"+"nue_scatt.txt")
Expand Down Expand Up @@ -704,13 +705,13 @@ def rho_EM_std(T_g, mu=0, LO=True, NLO=True):
"""

corr_QED = (
-jnp.interp(
T_g, jnp.flip(P_QED_tab[:,0]),
jnp.flip(LO*P_QED_tab[:,1]+NLO*P_QED_tab[:,2])
)
+ T_g*jnp.interp(
T_g, jnp.flip(dPdT_QED_tab[:,0]),
jnp.flip(LO*dPdT_QED_tab[:,1]+NLO*dPdT_QED_tab[:,2])
-interpax.interp1d(
T_g, P_QED_tab[:,0],
LO*P_QED_tab[:,1]+NLO*P_QED_tab[:,2]
)
+ T_g*interpax.interp1d(
T_g, dPdT_QED_tab[:,0],
LO*dPdT_QED_tab[:,1]+NLO*dPdT_QED_tab[:,2]
)
)

Expand Down Expand Up @@ -745,9 +746,9 @@ def p_EM_std(T_g, mu=0, LO=True, NLO=True):
Units of MeV^4.
"""

corr_QED = jnp.interp(
T_g, jnp.flip(P_QED_tab[:,0]),
jnp.flip(LO*P_QED_tab[:,1] + NLO*P_QED_tab[:,2])
corr_QED = interpax.interp1d(
T_g, P_QED_tab[:,0],
LO*P_QED_tab[:,1] + NLO*P_QED_tab[:,2]
)

return (
Expand Down Expand Up @@ -781,9 +782,9 @@ def rho_plus_p_EM_std(T_g, mu=0, LO=True, NLO=True):
Units of MeV^4.
"""

corr_QED = T_g * jnp.interp(
T_g, jnp.flip(dPdT_QED_tab[:,0]),
jnp.flip(LO*dPdT_QED_tab[:,1] + NLO*dPdT_QED_tab[:,2])
corr_QED = T_g * interpax.interp1d(
T_g, dPdT_QED_tab[:,0],
LO*dPdT_QED_tab[:,1] + NLO*dPdT_QED_tab[:,2]
)

return (
Expand Down Expand Up @@ -1018,10 +1019,10 @@ def G(T_1, mu_1, T_2, mu_2):

def G_nue_with_me(T_1, mu_1, T_2, mu_2):

def interp_f(f_tab):

return jnp.interp(
T_1, f_tab[:,0], f_tab[:,1], left=f_tab[0,1], right=f_tab[-1,1]
def interp_f(f_tab):
# Tables have boundary values 0.0 (low T) and 1.0 (high T)
return interpax.interp1d(
T_1, f_tab[:,0], f_tab[:,1], extrap=(0.0, 1.0)
)

f_nue_ann = lax.cond(
Expand All @@ -1042,12 +1043,12 @@ def interp_f(f_tab):
)
)

def G_numt_with_me(T_1, mu_1, T_2, mu_2):

def interp_f(f_tab):
def G_numt_with_me(T_1, mu_1, T_2, mu_2):

return jnp.interp(
T_1, f_tab[:,0], f_tab[:,1], left=f_tab[0,1], right=f_tab[-1,1]
def interp_f(f_tab):
# Tables have boundary values 0.0 (low T) and 1.0 (high T)
return interpax.interp1d(
T_1, f_tab[:,0], f_tab[:,1], extrap=(0.0, 1.0)
)

f_numt_ann = lax.cond(
Expand Down