Raffaele Borrelli

Hi, I know this is probably not maintained anymore but in case some wants to use the TDVP algorithm please change the file ksl.py. The line y0 = y0.round(1e-14) changes...

Read vector

2

Hi, it seems that the python interface for reading a vector/matrix in TT format from a file is missing but all the fortran subroutines are implemented. The write() interface is...

Hi, is the two-site version of the TDVP integrator planned? or what would be the best starting point for its implementation? Thanks, Raffaele

How to reshape a matrix to a vector

8

Is it possible to use the implemented reshape function to reshape a matrix to a vector? I have a matrix A(i_1, ...i_d, j_1...j_d) in TT format and I want to...

Hi, this might not be strictly related to the library, but is it possible to compute a TT representation of a 2d-dimensional vector of this type: $\sum_{n_1,n_2,...m_1 m_2} | n_1...

I have found a problem when using TT complex vectors. When adding complex vectors with a zero imaginary component the code automatically change the result to real. This is due...

dtt_svd error

4

When constructing a TT matrix from an Hamiltonian operator with a very large number of degrees of freedom the norm of the matrices passed to the QR factorization routine becomes...