Dear all,<br>            I am trying to use the maxent code from ALPS. In the document hybdoc.pdf, it is being suggested <br>that &quot;it helps to continue the self-energies instead of the Green&#39;s functions&quot;. But the CT-QMC hybridization <br>
code only returns the imaginary frequency self-energy, and it does not mention error associated with it. <br>While it is suggested that one should use data with error bars for the analytic continuation. <br><br>In the sample parameter file in the  hybdoc.pdf, even though DATASPACE=frequency, the data points(X_i)  <br>

are taken as real numbers. In general it should be a complex numbers. <br><br>Can somebody clarify this as to how to input the self-energy (complex number) and what should one do <br>about the errors associated with the self-energy?<br>

I tried to give input as X_i=(0.5,0.5), but parameter2xml gives error when it tries to convert the input file to <br>xml format. It says - Caught exception: parameter parse error at &quot;{ PARTICLE_HOLE_SYMMETRY = 1 X_0&quot;.<br>

<br>So, can someone send some sample input file for the analytic continuation of imaginary frequency data (complex <br>numbers) to the real frequency.<br><br><div><div><div>
<div><div><div><div><div><div>With best regards,<br>Viveka Nand Singh<br></div></div></div></div></div></div></div></div></div><div>
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