- class Barrier(num_qubits, label=None)[source]¶
A barrier is a visual indicator of the grouping of a circuit section. It also acts as a directive for circuit compilation to separate pieces of a circuit so that any optimizations or re-writes are constrained to only act between barriers.
Create new barrier instruction.
num_qubits (int) -- the number of qubits for the barrier type [Default: 0].
label (str) -- the barrier label
TypeError -- if barrier label is invalid.
Add a decomposition of the instruction to the SessionEquivalenceLibrary.
Assemble a QasmQobjInstruction
Validation of the arguments.
Set a classical equality condition on this instruction between the register or cbit
Copy of the instruction.
Return True .IFF.
Return a default OpenQASM string for the instruction.
Creates an instruction with gate repeated n amount of times.
For a composite instruction, reverse the order of sub-instructions.
Soft comparison between gates.
Instruction parameters has no validation or normalization.
Get Clbits in condition.
Get the decompositions of the instruction from the SessionEquivalenceLibrary.
Return definition in terms of other basic gates.
Get the duration.
Return instruction label
Return the name.
Return the number of clbits.
Return the number of qubits.
return instruction params.
Get the time unit of duration.