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I want to use quantum Monte-Carlo results to benchmark an algorithm for the Bose-Hubbard model. There are so many QMC methods in the market, so which one is the simplest one? I want the ground state energy, some simple correlation functions. I thought of using the open toolbox of ALPS, but was frustrated by the lengthy guidance.

Could anyone give me some suggestion?

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  • $\begingroup$ How are you defining "simplest" in this case? $\endgroup$
    – Kyle Kanos
    Commented Apr 22, 2023 at 18:50
  • $\begingroup$ It could depend on the details of the system. For example, do you happen to have a fixed number of bosons, or do you want them to in principle be able to go up to infinity? and what's the interaction you have in mind? $\endgroup$
    – Gitef
    Commented May 3, 2023 at 21:00
  • $\begingroup$ @Gitef I have a fixed number of particles, and I have an onsite interaction, that is, my model is the standard BHM. $\endgroup$
    – poisson
    Commented Oct 6, 2023 at 7:50

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