NewWavefunction

NewWavefunction(Nf, Nb, DeterminantTable) creates a wave-function with Nf fermions and Nb bosons as a sum over determinants given by the determinant table. Determinant Table is of the form of a string of 1's and 0's followed by a prefactor, for example: { {“100000”,math.sqrt(1/2)}, …}. NewWavefunction can take a forth element specifying options.

• Nf : Integer
• Nb : Integer
• Determinant Table : Table of tables containing the determinant in terms of 1's and 0's specifying occupied and unoccupied Fermions followed by a real or complex prefactor.
• Possible options are

  • “Name” a string specifying the name of the wavefunction
  • “NBitsKey” a list of integers specifying the number of bits in the key used for the hash lookup tables. For optimal performance 2^NBitsKey should be about 1.5 times larger than the maximum number of determinants encountered in the wavefunction.

• psi : Wavefunction

description text

NewWavefunction.Quanty

Nf=6
Nb=0
 
psi0=NewWavefunction(Nf, Nb, { { "100000",math.sqrt(1/2)}, {"000001",math.sqrt(1/2)} } )
 
print(psi0)

NewWavefunction.out

WaveFunction: Wave Function
QComplex         =          0 (Real==0 or Complex==1)
N                =          2 (Number of basis functions used to discribe psi)
NFermionic modes =          6 (Number of fermions in the one particle basis)
NBosonic modes   =          0 (Number of bosons in the one particle basis)
 
#      pre-factor         Determinant
   1   7.071067811865E-01       100000
   2   7.071067811865E-01       000001