You need to create a graph with different coupling types and specify all couplings individually.

On 2 Aug 2017, at 13:45, Andre Vieira <apvieira@if.usp.br> wrote:

Hi,

is there a way of using the 'inhomogeneous chain lattice' definition to implement an arbitrary nonperiodic but deterministic lattice for QMC applications? To be specific, I would like to implement a spin model in which, for instance, J(1), J(2), J(3), etc. are all different, but not defined by a simple function, nor randomly chosen.

Thanks in advance for your help,

Andre.

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