qat.middleend.decompositions.pulses module

class DefaultPulseDecompositions(gate_decompositions=None)

Bases: PulseDecompositionBase

Implements the standard gate-to-pulse decompositions used in OQC hardware.

Provides decomposition rules for the native gate set {Z_phase, X_pi_2, ZX_pi_4}. Gates which are not part of the native set are first decomposed into native gates using DefaultGateDecompositions, and then decomposed into pulses using the rules provided here.

Parameters:

gate_decompositions (Optional[DecompositionBase]) – The DAG for decomposing higher-level, non-native gates can be provided as an optional argument. Uses the:class:DefaultGateDecompositions by default.

decompose_op(gate, *args)

Implements the definition of a decomposition of a gate.

The definition does not have to be in terms of native gates, but decompositions must form a DAG. This will call gate_decompositions for higher-level gates. Decompositon details of native gates and other qubit operations should be implemented here.

end_nodes = (<class 'qat.ir.instructions.QuantumInstruction'>,)

class PulseDecompositionBase(gate_decompositions=None)

Bases: DecompositionBase

Base object for implementing decompositions of NativeGate and other qubit operations such as Measure, Reset and Barrier.

This handles decompositions of gates / operations to pulse level instructions. Details of gate-to-gate decompositions should not be specified here, but can be injected as gate_decompositions to allow for decomposition of higher-level gates into pulses.

Parameters:

gate_decompositions (Optional[GateDecompositionBase]) – The DAG for decomposing higher-level, non-native gates can be provided as an optional argument. Uses the DefaultGateDecompositions by default.

decompose_op(gate, model)

Implements the definition of a decomposition of a gate.

The definition does not have to be in terms of native gates, but decompositions must form a DAG. This will call gate_decompositions for higher-level gates. Decompositon details of native gates and other qubit operations should be implemented here.

end_nodes = (<class 'qat.ir.instructions.QuantumInstruction'>,)