What you know you can't explain, but you feel it. You've felt it your entire life, that there's something wrong with the world. You don't know what it is, but it's there, like a splinter in your mind, driving you mad.
Itools /
Mp-icorrelation
Usage: mp-icorrelation [options] <model> <Op1> <Op2> <psi> Allowed options: --help show this help message --nmax arg Maximum number of bosons per site (for bh model) --string arg make a string correlation function with this operator --spin arg spin per site, for spin models --nosite don't calculate the on-site correlations <op1(i)op2(i)> -l [ --length ] arg length of correlation [default 100] The By default, the program calculates all correlations in the unit cell <op1(x) op2(y)> where x varies over all sites in the first unit cell, and y varies over all sites in unit cells up to the one containing the site specified by The required parameters are the model, the first and second operators of the two-point correlator, and the wavefunction file. The model is not the same as the Hamiltonian used for mp-idmrg5, but is related: the model contains information only about the local basis of the lattice sites, and a single model may be used with many different Hamiltonian's. As at 18-11-2009, the available models are sf-u1, spin, spin-su2, spin-u1, spin-z2, tj-u1, tj-u1su2, klm-u1su2, hubbard-so4, hubbard-u1, bh, bh-u1. The To calculate local expectation values, use the identity operator The output is 4 columns, |