Table of Contents
NF
unsigned integer, read and write
An integer representing the number of Fermionic modes in the basis. For Operator O, index 0 to O.NF-1 refers to Fermions, index O.NF to O.NF+O.NB-1 refers to Bosons. Changing this number changes the operator. If the new number of Fermions is smaller than the old number all operators referring to Fermions larger than NF-1 will be removed from the operator. The index of Bosonic modes is shifted to start at O.NF-1.
Example
description text
Input
- Example.Quanty
NF=3 NB=0 O = NewOperator(NF,NB,{{3.4},{0,-0,1.2},{1,-2,2.5+I}}) print(O.NF) O.NF=2 print(O)
Result
3 Operator: Operator QComplex = 0 (Real==0 or Complex==1 or Mixed==2) MaxLength = 2 (largest number of product of lader operators) NFermionic modes = 2 (Number of fermionic modes (site, spin, orbital, ...) in the one particle basis) NBosonic modes = 0 (Number of bosonic modes (phonon modes, ...) in the one particle basis) Operator of Length 0 QComplex = 0 (Real==0 or Complex==1) N = 1 (number of operators of length 0) | 3.400000000000000E+00 Operator of Length 2 QComplex = 0 (Real==0 or Complex==1) N = 1 (number of operators of length 2) C 0 A 0 | 1.200000000000000E+00
