Function sequant::mbpt::op::lowers_rank_or_lower_to_vacuum¶

Defined in File op.cpp

Function Documentation¶

bool sequant::mbpt::op::lowers_rank_or_lower_to_vacuum(const ExprPtr &op_or_op_product, const unsigned long k)¶: Checks if a given Operator or Operator Product can lower quantum numbers of rank down up to vacuum.