Hi,Matthias

I mean if I want to program myself, but not using ALPS, is there a general
way to realize the conservation of particle number?  (For I find this
function in ALPS is really easy to use, so I am wondering how you guys
program it. But, what I really need is a workable and general way to solve
this problem when coding.)

Bo-Nan
--
Stay foolish,Stay hungry.