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Hello! Recently I've been trying to better understand Hadrons and was looking at the Meson module. The code & documentation say the meson 2-pt function can be computed with three options for the sink parameter. I have attempted to do exactly this and am currently confused by the results. A summary of the problem is:
Using an MSink object (I believe a ScalarSink) reproduces the pion correlation function in Test_hadrons_spectrum.cpp. Using the same MSource object as used to compute the propagator, produces a correlator with only one non-zero entry at t=0. Using a SlicedPropagator produces a symmetric correlation function, but not one that decays exponentially.
Firstly here are a few time slices of each correlator to showcase the problem
Hello! Recently I've been trying to better understand Hadrons and was looking at the Meson module. The code & documentation say the meson 2-pt function can be computed with three options for the sink parameter. I have attempted to do exactly this and am currently confused by the results. A summary of the problem is:
Using an
MSink
object (I believe aScalarSink
) reproduces the pion correlation function inTest_hadrons_spectrum.cpp
. Using the sameMSource
object as used to compute the propagator, produces a correlator with only one non-zero entry at t=0. Using aSlicedPropagator
produces a symmetric correlation function, but not one that decays exponentially.Firstly here are a few time slices of each correlator to showcase the problem
meson correlator - Slice Propagator
I've also attached the main.cpp.txt main file which computes the correlator each way.
I appreciate I may just be misusing the other sink methods, and would appreciate any help.
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