Vqe_and_Measurement

try to combine vqe and TN (TN and sign problem)

HamTN.py provides Hamiltonian of 1-d transverse Ising model with its derivatives get_Ham(n,g,J,l,n_para) : $H(\phi)$ get_DerHam_Naive(n,g,J,l,n_para) : $ \partial H / \partial \phi $ (finite difference)

measure_vqe.py provides vqe for chemical problems

Notexxx.pdf recording of discussion