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Mixing

Tools for mixing the self-energy functions $\Sigma$, hybridization functions $\Delta$, and local impurity levels $\epsilon_i$. They adopted the linear mixing algorithm. We also implement the so-called Kerker algorithm to mix the correlation-induced correction for density matrix $\Gamma$.

Source: mixer.jl

Contents

    Index

      Functions

      ZenCore.mixer_call — Function
      mixer_call(::NULLMixer, it::IterInfo, ai::Array{Impurity,1})
mixer_call(::ΣMixer, it::IterInfo, ai::Array{Impurity,1})
mixer_call(::ΔMixer, it::IterInfo, ai::Array{Impurity,1})
mixer_call(::EMixer, it::IterInfo, ai::Array{Impurity,1})
mixer_call(::ΓMixer, it::IterInfo, ai::Array{Impurity,1})

      Try to mix various functions during the iterations, including self-energy functions Σ, hybridization functions Δ, effective impurity levels E, and correction for density matrix Γ. It acts as a dispatcher.

      See also: _mixer_.

      ZenCore.mixer_sigma — Function
      mixer_sigma(it::IterInfo, ai::Array{Impurity,1})

      Try to mix the self-energy functions Σ and then use the mixed values to update the dmft1/sigma.bare file.

      See also: mixer_core, amix, distance.

      ZenCore.mixer_delta — Function
      mixer_delta(it::IterInfo, ai::Array{Impurity,1})

      Try to mix the hybridization functions Δ and then use the mixed values to update the dmft1/dmft.delta file.

      See also: mixer_core, amix.

      ZenCore.mixer_eimpx — Function
      mixer_eimpx(it::IterInfo, ai::Array{Impurity,1})

      Try to mix the local impurity levels εᵢ and then use the mixed value to update the dmft1/dmft.eimpx file.

      See also: mixer_core, amix.

      ZenCore.mixer_gcorr — Function
      mixer_gcorr(it::IterInfo)

      Try to mix the correction for density matrix Γ and then use the mixed value to update the dmft2/dmft.gcorr file. Here we use the Kerker algorithm, instead of the linear mixing algorithm.

      See also: mixer_core, distance.

      ZenCore.amix — Function
      amix(it::IterInfo)

      Return the mixing factor for mixer component. It should depend on the current iteration number, instead of being a constant.

      See also: IterInfo.

      ZenCore.distance — Function
      distance(SA::Vector{Array{C64,4}}, SB::Vector{Array{C64,4}})

      Calculate the difference between two multi-dimensional arrays. Usually We apply this function to calculate the difference between two self-energy functions.

      See also: mixer_sigma.

      distance(GA::Array{C64,4}, GB::Array{C64,4})

      Calculate the difference between two multi-dimensional arrays. Usually We apply this function to calculate the difference between two corrections for density matrix.

      See also: mixer_gcorr.