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Lanczos based Exact Diagonalization solver for the Dynamical Mean-Field Theory problem. This code is implemented in the (N_up:N_dw) basis and solves the Normal phase only.

CMake 1.88% Fortran 97.91% Makefile 0.21%

dmft-lanc-ed's Introduction

DMFT Lanczos Exact Diagonalization

A Lanczos based solver for the Dynamical Mean-Field Theory using the N_up:N_dw implementation.
This code solves the normal (N_up, N_dw) case only. (For a generic implemenation which allows for superconductivity (s-wave) or SOC see here: https://github.com/aamaricci/dmft-ed

The code is based on:

The code structure is as follow:

  • The set of modules compile into a top layer named DMFT_ED.f90
  • The actual implementation of the DMFT equations is case by case performed in a driver program, usually placed in the directory drivers.
  • In the driver code the user must includes the DMFT_ED module and call the necessary procedures to solve the DMFT equations.

An example, solving the Hubbard model on the Bethe lattice, is contained in the file drivers/edn_hm_bethe.f90.

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COPYRIGHT & LICENSING
Copyright 2012 - (c), Adriano Amaricci, Massimo Capone, Lorenzo Crippa
All rights reserved.

The software is provided with no license, as such it is protected by copyright. The software is provided as it is and can be read and copied, in agreement with the Terms of Service of GITHUB. Use of the code is constrained to author agreement.

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