Changelog#

0.0.16 — 2024-11-22#

Fixed#

  • Fit for critical temperatures

0.0.15 — 2024-11-21#

Fixed#

  • Fixed some cases of the crit_temp routine going into the wrong direction

0.0.14 — 2024-11-20#

Changed#

  • crit-temp routine now saves a sample Hamiltonian besides the critical temperatures

Fixed#

  • Search for T_C bounds, so that it does not loop anymore in certain cases

0.0.13 — 2024-11-19#

Added#

  • Routine to search for transition temperature

0.0.12 — 2024-11-09#

Changed#

  • Use numpy allclose function in covergence criterium

0.0.11 — 2024-11-08#

Changed#

  • Option to set maximum number of iterations in self-consistency loop

  • Convergence criterium changed to be relative, i.e. the change in gap components is divided by the old gap components and then compared to the epsilon

0.0.10 — 2024-11-06#

Added#

  • Gap equation at zero temperature

  • Proper logging and debug mode

Fixed#

  • Typing in Hamiltonian classes, so the from_file method returns the corresponding subclass

0.0.9 — 2024-10-28#

Changed#

  • Save all simulation parameters into the output file

  • Restructured mean_field Hamiltonian classes, so more functionality is concentrated in the base class

Fixed#

  • Fixed mistake in gap equation: had the algebra wrong, leading to the self-consistency not converging correctly

0.0.8 — 2024-10-23#

Removed#

  • Functions to calculate free energy, as they are not needed anymore with the new self-consistency solver

Added#

  • Command-line-interface to run input files

  • Finite momentum pairing into BdG Hamiltonian and self-consistency

  • Finite momentum pairing into input file

  • Function in Hamiltonian to calculate spectral gap from DOS

Changed#

  • Put Hamiltonians into subpackage under mean_field

Fixed#

  • Take lattice as argument in self-consistency, dont use Graphene lattice as default

0.0.7 — 2024-10-15#

Added#

  • Function to calculate density of states from bands

Changed#

  • Multiply out phase factor of first entry in gap equation

Fixed#

  • Sum over bands for calculation of quantum metric in normal state as well

0.0.6 — 2024-10-07#

Added#

  • Class bundling all aspects concerning lattice geometry

  • Plotting methods for superfluid weight and quantum metric

  • Proper self-consistent calculation of gap

  • Implemented finite temperature into self-consistency calculation

  • One band tight binding Hamiltonian

Changed#

  • Moved formatting of plots into a separate method

  • Renamed variables in classes to be consistent and clearer

0.0.5 — 2024-08-27#

Fixed#

  • Correct calculation of superfluid weight using the unitary matrix diagonalising the BdG Hamiltonian

0.0.4 — 2024-07-10#

Added#

  • Implemented calculation of quantum metric for BdG states

Changed#

  • Hamiltonian methods now construct matrices in one turn from the whole k point list, this should significantly speed up calculations

0.0.3 — 2024-07-05#

Added#

  • Add formula to calculate quantum metric

Changed#

  • Rename hamiltonians namespace to mean_field

  • Implemented wrappers around the free energy calculation to calculate with a complex, real or uniform (in the orbitals) order parameter

  • Calculate and return all components of the superfluid weight

0.0.2 — 2024-07-01#

Added#

  • Can save and read results for a Hamiltonian, including parameters

  • Calculation of superfluid weight

  • Calculation of free energy at zero temperature

Changed#

  • Put units into plots

0.0.1 — 2024-05-31#

Added#

  • Initial release with solid treatment of noninteracting models and gap equation ansatz