nrgljubljana_interface.solver_core.NrgParamsT

class nrgljubljana_interface.solver_core.NrgParamsT

Bases: object

Low-level NRG parameters.

---

Synthesized constructor with the following keyword arguments:

Parameters:

dmnrgbool, default=false

cfsbool, default=false

fdmbool, default=true

fdmexpvbool, default=true

dmnrgmatsbool, default=false

fdmmatsbool, default=false

matsint, default=100

specgtstr, default=””

speci1tstr, default=””

speci2tstr, default=””

v3mmbool, default=false

mMAXint, default=-1

Nmaxint, default=-1

xmaxfloat, default=-1.0

discretizationstr, default=”Z”

zfloat, default=1.0

tristr, default=”old”

preccppint, default=2000

diagstr, default=”default”

diagratiofloat, default=1.0

dsyevrlimitint, default=100

zheevrlimitint, default=100

restartbool, default=true

restartfactorfloat, default=2.0

safeguardfloat, default=1e-5

safeguardmaxint, default=200

fixepsfloat, default=1e-15

betabarfloat, default=1.0

gtpfloat, default=0.7

chitpfloat, default=1.0

finitebool, default=false

cfsgtbool, default=false

cfslsbool, default=false

fdmgtbool, default=false

fdmlsbool, default=false

fdmexpvnint, default=0

finitematsbool, default=false

dmbool, default=false

broaden_min_ratiofloat, default=3.0

omega0float, default=-1.0

omega0_ratiofloat, default=1.0

diagthint, default=1

substepsbool, default=false

strategystr, default=”kept”

Ninitint, default=0

reimbool, default=false

dumpannotatedint, default=0

dumpabsbool, default=false

dumpscaledbool, default=true

dumpprecisionint, default=8

dumpgroupsbool, default=true

grouptolfloat, default=1e-6

dumpdiagonalint, default=0

savebinsbool, default=true

broadenbool, default=false

eminfloat, default=-1.0

emaxfloat, default=-1.0

binsint, default=1000

accumulationfloat, default=0.0

linstepfloat, default=0

discard_trimfloat, default=1e-16

discard_immediatelyfloat, default=1e-16

goodEfloat, default=2.0

NN1bool, default=false

NN2evenbool, default=true

NN2avgbool, default=false

NNtanhfloat, default=0.0

width_tdint, default=16

width_customint, default=16

prec_tdint, default=10

prec_customint, default=10

prec_xyint, default=10

resumebool, default=false

logstr, default=””

logallbool, default=false

donebool, default=true

calc0bool, default=true

lastallbool, default=false

lastalloverridebool, default=false

dumpsubspacesbool, default=false

dump_fbool, default=false

dumpenergiesbool, default=false

logenumberint, default=10

stopafterstr, default=””

forcestopint, default=-1

removefilesbool, default=true

noimagbool, default=true

checksumrulesbool, default=false

checkdiagbool, default=false

checkrhobool, default=false

Attributes

NN1	Perform N/N+1 patching.
NN2avg	Average over even and odd N/N+2 spectra.
NN2even	Use even iterations in N/N+2 patching.
NNtanh	Parameter \(a\) in the \(\tanh[a(x-0.5)]\) window function.
Ninit	Number of initial Wilson chain operators.
Nmax	Number of sites in the Wilson chain (\(-1\): automatically determined).
accumulation	Shift of the accumulation points for binning.
betabar	Parameter \(\bar{\beta}\) for thermodynamics.
bins	Number of bins per decade for spectral data.
broaden	Enable broadening of spectra.
broaden_min_ratio	Auto-tune the broaden_min parameter.
calc0	Perform calculations at the 0-th iteration.
cfs	Perform a CFS (complete Fock space) calculation.
cfsgt	Compute the CFS greater correlation function.
cfsls	Compute the CFS lesser correlation function.
checkdiag	Test the diagonalisation results.
checkrho	Test that \(\mathrm{tr}(\rho) = 1\).
checksumrules	Check operator sum rules.
chitp	Parameter \(p\) for \(\chi(T)\) calculations.
diag	Eigensolver routine (dsyev|dsyevr|zheev|zheevr|default).
diagratio	Ratio of eigenstates computed in partial diagonalisation.
diagth	Number of diagonalisation threads.
discard_immediately	Peak clipping on the fly.
discard_trim	Peak clipping at the end of the run.
discretization	Discretization scheme.
dm	Compute density matrices.
dmnrg	Perform a DMNRG (density-matrix NRG) calculation.
dmnrgmats	Perform the DMNRG calculation on the Matsubara axis.
done	Create a DONE file.
dsyevrlimit	Minimal matrix size for dsyevr.
dump_f	Dump \(\langle f \rangle\) matrix elements.
dumpabs	Dump in terms of absolute energies.
dumpannotated	Number of eigenvalues to dump.
dumpdiagonal	Dump diagonal matrix elements.
dumpenergies	Dump all energies to a file.
dumpgroups	Dump by grouping degenerate states.
dumpprecision	Number of digits of precision used when dumping.
dumpscaled	Dump using omega_N energy units.
dumpsubspaces	Save detailed subspace info.
emax	Upper binning limit.
emin	Lower binning limit.
fdm	Perform an FDM (full-density-matrix) calculation.
fdmexpv	Calculate expectation values using the FDM algorithm.
fdmexpvn	Iteration at which the expectation values are evaluated.
fdmgt	Compute the FDM greater correlation function.
fdmls	Compute the FDM lesser correlation function.
fdmmats	Perform the FDM calculation on the Matsubara axis.
finite	Perform a Costi-Hewson-Zlatic finite-T calculation.
finitemats	Perform a \(T > 0\) calculation on the Matsubara axis.
fixeps	Threshold value for eigenvalue splitting corrections.
forcestop	Force stop at the given iteration (-1: disabled).
goodE	Energy window parameter for patching.
grouptol	Energy tolerance for considering two states as degenerate.
gtp	Parameter \(p\) for \(G(T)\) calculations.
lastall	Keep all states in the last iteration for DMNRG.
lastalloverride	Override the automatic lastall setting.
linstep	Bin width for the linear mesh.
log	List of tokens defining what to log.
logall	Log everything.
logenumber	Number of eigenvalues to show for log=e.
mMAX	Number of sites in the star representation (\(-1\): automatically determined).
mats	Number of Matsubara points to collect.
noimag	Do not output the imaginary parts of expectation values.
omega0	Smallest energy scale in the problem, \(\omega_0\).
omega0_ratio	Sets \(\omega_0 = \mathtt{omega0\_ratio} \times T\).
prec_custom	Precision of columns in the 'custom' output file.
prec_td	Precision of columns in the 'td' output file.
prec_xy	Precision of the spectral function output.
preccpp	Precision for tridiagonalisation.
reim	Output the imaginary parts of the correlators.
removefiles	Remove temporary data files.
restart	Restart the calculation to achieve the truncation goal.
restartfactor	Rescale factor used when restart is true.
resume	Attempt to restart the calculation.
safeguard	Additional states to keep in case of a near degeneracy.
safeguardmax	Maximal number of additional states to keep.
savebins	Save binned (unbroadened) data.
specgt	Conductance curves to compute.
speci1t	\(I_1\) curves to compute.
speci2t	\(I_2\) curves to compute.
stopafter	Stop the calculation at a given point.
strategy	Recalculation strategy.
substeps	Use the interleaved diagonalization scheme.
tri	Tridiagonalisation approach.
v3mm	Compute the 3-leg vertex on the Matsubara/Matsubara axis.
width_custom	Width of columns in the 'custom' output file.
width_td	Width of columns in the 'td' output file.
xmax	Largest \(x\) in the discretization ODE solver (\(-1\): automatically determined).
z	Parameter \(z\) (twist) in the logarithmic discretization.
zheevrlimit	Minimal matrix size for zheevr.