Mapping a channel mixing bath to a Wilson chain
A versaltile mapping scheme starting from hybridization function, mapping a general multi-orbital non-interacting channel mixing bath to a Wilson chain model. The motivation is to transform the impurity problems to a real space chain, thus can be solved using NRG and VMPS.
To use this program
Please install the following numerical packages for python(pip install -r requirements.txt)
or Anaconda all in one pack: https://store.continuum.io/cshop/anaconda/
To run an example.
``` $ cd source/ $ python quickmap.py ```
Program will use the default configuration file 'config-sample.ini' as input.
Also, you can specify your own configuration file by
$ python quickmap.py <your-config>.ini.
The input hybridization is specified by a data file('sample_hybridization_func.dat' above),
it will be interpolated as a continuous function, thus choosing a good omega mesh(like a logarithmic one) is important.
Quantum impurities in channel mixing baths Jin-Guo Liu, Da Wang, and Qiang-Hua Wang Phys. Rev. B 93, 035102 – Published 4 January 2016 Its Arxiv version: doc/1509.01461v2.pdf, doc/SupplMater.pdf
Technical Details: doc/technical.pdf
Program documentation: doc/program_manual.pdf
- Author: Jinguo Leo, NanJing University.
- Date: 2015/09/07
- Contact: firstname.lastname@example.org