Papers › SOM: Implementation of the Stochastic Optimization Method for Analytic Continuation
SOM: Implementation of the Stochastic Optimization Method for Analytic Continuation
Igor Krivenko, Malte Harland
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We present the TRIQS/SOM analytic continuation package, an efficient implementation of the Stochastic Optimization Method proposed by A. Mishchenko et al [Phys. Rev. B 62, 6317 (2000)]. TRIQS/SOM strives to provide a high quality open source (distributed under the GNU General Public License version 3) alternative to the more widely adopted Maximum Entropy continuation programs. It supports a variety of analytic continuation problems encountered in the field of computational condensed matter physics. Those problems can be formulated in terms of response functions of imaginary time, Matsubara frequencies or in the Legendre polynomial basis representation. The application is based on the TRIQS C++/Python framework, which allows for easy interoperability with TRIQS-based quantum impurity solvers, electronic band structure codes and visualization tools. Similar to other TRIQS packages, it comes with a convenient Python interface.
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