Hey all, I am trying to implement the TDVP function, and I get some weird error that I couldn’t figure out what is the reason. Basically, I am trying the develop in imaginary time the following wave function |\psi_0 \rangle = |0...0\rangle \\ |\psi \rangle= \frac{e^{-\beta H}|\psi_0 \rangle}{ |…

I think here it might solve your problem to rewrite your Hamiltonian in terms of the “S+” and “S-” operators instead of “Sy” and “Sx”. This is because “S+” and “S-” are real-valued so you would not encounter any complex numbers that way.

Errors in TDVP function

DMRG and Numerical Methods

mtfishman June 1, 2023, 6:39pm 9

When it rains, it pours: TDVP for a Hamiltonian with complex parameters

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Errors in TDVP function

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