tensornetwork.Z2Charge¶
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class
tensornetwork.
Z2Charge
(charges: Union[List[T], numpy.ndarray], charge_labels: Optional[numpy.ndarray] = None, charge_types: Optional[List[Type[BaseCharge]]] = None, charge_dtype: Optional[Type[numpy.number]] = <class 'numpy.int16'>)¶ Charge Class for the Z2 symmetry group.
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__init__
(charges: Union[List[T], numpy.ndarray], charge_labels: Optional[numpy.ndarray] = None, charge_types: Optional[List[Type[BaseCharge]]] = None, charge_dtype: Optional[Type[numpy.number]] = <class 'numpy.int16'>) → None¶ Initialize self. See help(type(self)) for accurate signature.
Methods
__init__
(charges, numpy.ndarray], …)Initialize self. copy
()Return a copy of BaseCharge
.dual
(take_dual)Return the charges of BaseCharge
, possibly conjugated.dual_charges
(charges)fuse
(charge1, charge2)identity_charge
()intersect
(other[, assume_unique, return_indices])Compute the intersection of self
withother
.Z2Charge.isin
random
(dimension, minval, maxval)reduce
(target_charges, numpy.ndarray], …)Reduce the dimension of a charge to keep only the charge values that intersect target_charges :param target_charges: array of unique charges to keep. Z2Charge.sort_unique_charges
unique
(return_index, return_inverse, …)Compute the unique charges in BaseCharge
.Attributes
charges
Z2Charge.degeneracies
dim
dtype
identity_charges
(dim)Returns the identity charge. Z2Charge.label_dtype
Z2Charge.num_symmetries
num_unique
Return the number of different charges in ChargeCollection
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