operator+=()

Operator & syten::MPS::Operator::operator+=

(

Operator const &

other

)

Sum of two MPO, \( \hat O + \hat P \).

Bad things happen if the two operators don’t transform in the same quantum number sector

References dIdx, dropUnmatched(), syten::expansion(), is_sso, isIdentity(), isSingleSite(), lIdx, rIdx, singleSite(), std::vector< Tensor< 4 > >::size(), SYTEN_ASSERT_DEBUG, and uIdx.

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