qml.estimator.compact_hamiltonian.THCHamiltonian

class THCHamiltonian(num_orbitals, tensor_rank, one_norm=None)

Bases: object

For a tensor hypercontracted (THC) Hamiltonian, stores the minimum necessary information pertaining to resource estimation.

The form of this Hamiltonian is described in arXiv:2407.04432.

Parameters:

• num_orbitals (int) – number of spatial orbitals

• tensor_rank (int) – tensor rank of two-body integrals in the tensor hypercontracted (THC) representation

• one_norm (float | None) – the one-norm of the Hamiltonian

Raises:

• TypeError – if num_orbitals, or tensor_rank is not a positive integer

• TypeError – if one_norm is provided but is not a non-negative float or integer

See also

TrotterTHC

Attributes

one_norm

one_norm = None

code/api/pennylane.estimator.compact_hamiltonian.THCHamiltonian

 

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