EchoRZXWeylDecomposition
class qiskit.transpiler.passes.EchoRZXWeylDecomposition(*args, **kwargs)
Bases: TransformationPass
Rewrite two-qubit gates using the Weyl decomposition.
This transpiler pass rewrites two-qubit gates in terms of echoed cross-resonance gates according to the Weyl decomposition. A two-qubit gate will be replaced with at most six non-echoed RZXGates. Each pair of RZXGates forms an echoed RZXGate.
EchoRZXWeylDecomposition pass.
The class qiskit.transpiler.passes.optimization.echo_rzx_weyl_decomposition.EchoRZXWeylDecomposition
is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package is being deprecated and will be moved to the Qiskit Dynamics repository: https://github.com/qiskit-community/qiskit-dynamics. Note that once removed, qiskit.transpiler.passes.optimization.echo_rzx_weyl_decomposition.EchoRZXWeylDecomposition
will have no alternative in Qiskit.
Parameters
- instruction_schedule_map (InstructionScheduleMap) – the mapping from circuit
Instruction
names and arguments toSchedule
s. - target (Target) – The
Target
representing the target backend, if bothinstruction_schedule_map
andtarget
are specified then this argument will take precedence andinstruction_schedule_map
will be ignored.
Attributes
is_analysis_pass
Check if the pass is an analysis pass.
If the pass is an AnalysisPass, that means that the pass can analyze the DAG and write the results of that analysis in the property set. Modifications on the DAG are not allowed by this kind of pass.
is_transformation_pass
Check if the pass is a transformation pass.
If the pass is a TransformationPass, that means that the pass can manipulate the DAG, but cannot modify the property set (but it can be read).
Methods
execute
execute(passmanager_ir, state, callback=None)
Execute optimization task for input Qiskit IR.
Parameters
- passmanager_ir (Any) – Qiskit IR to optimize.
- state (PassManagerState) – State associated with workflow execution by the pass manager itself.
- callback (Callable | None) – A callback function which is caller per execution of optimization task.
Returns
Optimized Qiskit IR and state of the workflow.
Return type
tuple[Any, qiskit.passmanager.compilation_status.PassManagerState]
name
run
run(dag)
Run the EchoRZXWeylDecomposition pass on dag.
Rewrites two-qubit gates in an arbitrary circuit in terms of echoed cross-resonance gates by computing the Weyl decomposition of the corresponding unitary. Modifies the input dag.
Parameters
dag (DAGCircuit) – DAG to rewrite.
Returns
The modified dag.
Return type
Raises
TranspilerError – If the circuit cannot be rewritten.
update_status
update_status(state, run_state)
Update workflow status.
Parameters
- state (PassManagerState) – Pass manager state to update.
- run_state (RunState) – Completion status of current task.
Returns
Updated pass manager state.
Return type