is_vacuum()

bool syten::STensorImpl::SBasis::is_vacuum

(

)

const

Returns true if this basis is a vacuum basis (single element, all 0 labels)

References syten::isVacuum(), num_sectors(), and sectors.

Referenced by syten::Pyten::init_stensor(), syten::IPEPSv2::mult(), and syten::STensorImpl::remove_dummy_leg().

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