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CommutationChecker

class CommutationChecker

GitHub

Bases: object

This code is essentially copy-pasted from commutative_analysis.py. This code cleverly hashes commutativity and non-commutativity results between DAG nodes and seems quite efficient for large Clifford circuits. They may be other possible efficiency improvements: using rule-based commutativity analysis, evicting from the cache less useful entries, etc.

Methods

commute

CommutationChecker.commute(op1, qargs1, cargs1, op2, qargs2, cargs2)

Checks if two Operations commute.

Parameters

  • op1 (Operation) – first operation.
  • qargs1 (List) – first operation’s qubits.
  • cargs1 (List) – first operation’s clbits.
  • op2 (Operation) – second operation.
  • qargs2 (List) – second operation’s qubits.
  • cargs2 (List) – second operation’s clbits.

Returns

whether two operations commute.

Return type

bool

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