supergrad.quantum_system.InteractingSystem

class supergrad.quantum_system.InteractingSystem(subsystem_list: List[QuantumSystem], interaction_list: List[InteractionTerm] = None, name='hilbert_space')

Class holding information about the whole system.

Parameters:

• subsystem_list (list) – list of QuantumSystem.

• interaction_list – list of InteractionTerm, one can use parse_interaction to construct InteractionTerm easily.

• name – module name

__init__(subsystem_list: List[QuantumSystem], interaction_list: List[InteractionTerm] | None = None, name='hilbert_space') → None

Methods

__init__(subsystem_list[, interaction_list, ...])
compute_energy_map([greedy_assign, ...])	Compute the energy of the whole system in the dressed indices, enumerating eigenenergies and eigenstates as j=0,1,2,.
compute_transform_matrix()	Computes the matrices related to basis transformation.
coupling_hamiltonian()	Returns the interaction Hamiltonian, based on the interaction terms specified for the current InteractingSystem object.
eigenenergies([evals_count])	Returns array of eigenvalues.
idling_hamiltonian()	Generate hamiltonian in the product basis.
idling_hamiltonian_in_prod_basis()	Generate hamiltonian in the product basis.
params_dict()	Returns parameters keyed by name for this module and submodules.
state_dict()	Returns state keyed by name for this module and submodules.
subsystem_hamiltonian()	Calculate bare hamiltonian.
transform_operator(operator, **kwargs)	Transform operator to current eigenbasis and truncated eigenbasis.

Attributes

dim	Return Hilbert Space dimension.
subsystem_count	Returns number of subsys_list composing the joint Hilbert space
subsystem_list
truncated_dim	Return the dimension for truncated eigen basis.