Eigenvalues
class Eigenvalues
Base class for eigenvalue estimation.
This method should initialize the module and use an exception if a component of the module is not available.
Methods
construct_circuit
abstract Eigenvalues.construct_circuit(mode, register=None)
Construct the eigenvalue estimation quantum circuit.
Parameters
- mode (str) – ‘matrix’ or ‘circuit’
- register (QuantumRegister) – register for circuit construction where eigenvalues will be stored.
Returns
object for the eigenvalue estimation circuit.
Return type
Raises
NotImplementedError – not implemented
construct_inverse
Eigenvalues.construct_inverse(mode, circuit)
Construct the inverse eigenvalue estimation quantum circuit.
Parameters
- mode (str) – construction mode, ‘matrix’ not supported
- circuit (QuantumCircuit) – the quantum circuit to invert
Returns
object for of the inverted eigenvalue estimation
circuit.
Return type
Raises
- NotImplementedError – not implemented for matrix mode
- ValueError – Circuit was not constructed beforehand
get_register_sizes
abstract Eigenvalues.get_register_sizes()
get register sizes
get_scaling
abstract Eigenvalues.get_scaling()
get scaling
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