pytenet

PyTeNet

Python implementation of quantum tensor network operations and simulations within the matrix product state framework.

Modules

autop	Operator state automaton, can be converted to an MPO via an operator graph.
bipartite_graph	Implementation of the Hopcroft-Karp algorithm, based on https://en.wikipedia.org/wiki/Hopcroft%E2%80%93Karp_algorithm
block_sparse_util	utility functions for handling block-sparse tensors with quantum number conservation.
bond_ops	Functions concerning virtual bonds.
chain_ops	Higher-level tensor network operations on a chain topology.
dmrg	DMRG algorithm.
hamiltonian_bose_hubbard	Construct the Bose-Hubbard Hamiltonian as a matrix product operator (MPO).
hamiltonian_fermi_hubbard	Construct the Fermi-Hubbard Hamiltonian as a matrix product operator (MPO).
hamiltonian_heisenberg	Construct the Heisenberg Hamiltonian as a matrix product operator (MPO).
hamiltonian_ising	Construct the Ising Hamiltonian as a matrix product operator (MPO).
hamiltonian_linear_fermionic	Represent a sum of fermionic creation or annihilation operators as a matrix product operator (MPO).
hamiltonian_molecular	Construct a molecular Hamiltonian as a matrix product operator (MPO).
hamiltonian_quadratic_fermionic	Represent a product of sums of fermionic creation and annihilation operators as a matrix product operator (MPO).
hamiltonian_spin_molecular	Construct a spin molecular Hamiltonian as a matrix product operator (MPO).
hamiltonian_util	Construct a Hamiltonian as an MPO based on local operator chains, which are shifted along a 1D lattice.
krylov	Krylov subspace algorithms.
mpo	Matrix product operator (MPO) class and associated functionality.
mps	Matrix product state (MPS) class and associated functionality.
opchain	Symbolic operator chain.
opgraph	Operator graph internal data structure for generating MPO representations.
optree	Symbolic operator tree.
qnumber	Quantum number utility functions.
tdvp	TDVP time integration algorithms for MPS, based on a Lanczos iteration for the local time evolution steps.
thc	Tensor hypercontraction (THC) representation of molecular Hamiltonians.
util	Generic utility functions.