zero_expand()

std::tuple< STensor, SBasis > syten::STensorImpl::zero_expand	(	STensor	a,
		SBasis const &	inner,
		SBasis const &	zero
	)

Constructs a zero-expanded tensor, expanding the leg inner by sectors as described in zero.

Remarks

This function is not autodifferentiable.

References syten::STensorImpl::STensor::autodiff_enabled(), syten::STensorImpl::STensor::b(), syten::STensorImpl::STensor::bi(), combine_bases(), syten::STensorImpl::SBasis::dir(), syten::STensorImpl::STensor::move(), syten::STensorImpl::STensor::rank(), SYTEN_ASSERT_MSG, syten::STensorImpl::STensor::visnz(), and syten::zeroExpand().

Referenced by syten::T3N::DMRG::Run::expandBranch(), and syten::IPEPSv2::full_update_apply_gate().

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