Apply MPO to another MPO

How do I use this algorithm? What does that parameter do?
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Apply MPO to another MPO

Post by koiag »

Hello all,

I encounter a problem about the multiplication of two MPOs. In other words, I now need to apply a MPO to another MPO (for the same Hilbert space) with the same number of sites. The return is again a MPO.

I am wondering whether the tenpy package provides the method with the classes provided in the package.

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Re: Apply MPO to another MPO

Post by Johannes »

This is not supported at this point. It's also not quite trivial especially in the case of infinite MPS, since MPOs are often extensive (scaling with L), and multiplying them can give you something quadratic in L.
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