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pomerol-ed / pomerol2triqs

Quick and dirty TRIQS wrapper around the Pomerol exact diagonalization library
GNU General Public License v3.0
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Static expectation values? #4

Closed HugoStrand closed 6 years ago

HugoStrand commented 6 years ago

Dear Igor,

I have looked through the example scripts but I can not find any example on how got compute static expectation values. Is there such functionality? or do I have to take the \beta=0 limit of a single-particle Green's function.

Cheers, Hugo

krivenko commented 6 years ago

Dear Hugo,

pomerol2triqs does not feature computation of static observables, because pomerol cannot compute them. If you only need the occupation numbers, then taking 1+G(\tau=0) is the only satisfactory solution (set n_tau=2 to speed up computation).

Igor

HugoStrand commented 6 years ago

Dear Igor,

Thank you for the rapid response. Ok, too bad, I was hoping to compute some slightly more complicated operator expressions. Then I'll use pyed (https://github.com/HugoStrand/pyed) for that.

Cheers, Hugo