qiskit.opflow.double_commutator¶
- double_commutator(op_a, op_b, op_c, sign=False)[source]¶
Deprecated: Compute symmetric double commutator of op_a, op_b and op_c. See McWeeny chapter 13.6 Equation of motion methods (page 479)
If sign is False, it returns
\[[[A, B], C]/2 + [A, [B, C]]/2 = (2ABC + 2CBA - BAC - CAB - ACB - BCA)/2.\]If sign is True, it returns
\[\lbrace[A, B], C\rbrace/2 + \lbrace A, [B, C]\rbrace/2 = (2ABC - 2CBA - BAC + CAB - ACB + BCA)/2.\]0.24.0 ভার্সন থেকে ডেপ্রিকেটেড: The function
qiskit.opflow.utils.double_commutator()is deprecated as of qiskit-terra 0.24.0. It will be removed no earlier than 3 months after the release date. For code migration guidelines, visit https://qisk.it/opflow_migration.- প্যারামিটার
op_a (OperatorBase) -- Operator A
op_b (OperatorBase) -- Operator B
op_c (OperatorBase) -- Operator C
sign (bool) -- False anti-commutes, True commutes
- রিটার্নস
the double commutator
- রিটার্ন টাইপ