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documentation:language_reference:functions:createspectra [2018/09/24 16:36] – Standard -> Default Simon Heinzedocumentation:language_reference:functions:createspectra [2026/05/13 16:18] (current) – Maurits W. Haverkort
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     * "Gamma" Positive real defining the full width half maximum Lorenzian broadening. (Default value 10*(Emax-Emin)/NE)      * "Gamma" Positive real defining the full width half maximum Lorenzian broadening. (Default value 10*(Emax-Emin)/NE) 
     * "Tensor" Bolean defining if off diagonal elements are calculated or not. (Default false)     * "Tensor" Bolean defining if off diagonal elements are calculated or not. (Default false)
 +    * "E0" Overwrites the standard value of $E_0 = \langle \psi | O_1 | \psi \rangle$ to the value set in the options
  
 ===== Output ===== ===== Output =====
  
-  * //G// : Spectrum object. In the case that both a list of operators $\{O_2^a,O_2^b\}$ as well as a list of Wavefunctions $\{\psi_1,\psi_2,\psi_3\}$ is given the output order first the Wavefunctions and then the operators, i.e. $\{I_1^a,I_2^a,I_3^a,I_1^b,I_2^b,I_3^b\}$ with $a$ and $b$ referring to the index of the operators and $1,2,3$ to the index of the Wavefunctions. +  * //S// : Spectrum object. In the case that both a list of operators $\{O_2^a,O_2^b\}$ as well as a list of Wavefunctions $\{\psi_1,\psi_2,\psi_3\}$ is given the output order first the Wavefunctions and then the operators, i.e. $\{I_1^a,I_2^a,I_3^a,I_1^b,I_2^b,I_3^b\}$ with $a$ and $b$ referring to the index of the operators and $1,2,3$ to the index of the Wavefunctions. 
-  * //T// : List representing a tri-diagonal matrix, whose resolvent is the spectral function+  * //G// : Response function object. Response functions are lists that contain the pole energies and residues in one of the different formats. Create spectra outputs either a tridiagonal format or a list of poles. When the option tensor = true is set the output is a matrix valued response function.
  
 ===== Example ===== ===== Example =====

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