genSpinLattice()

Lattice syten::IPEPS::Lat::Nil::genSpinLattice	(	int const	width,
		int const	depth,
		double const	spint = 0.5,
		std::vector< char >	site_classes = {}
	)

Generates a uniform Heisenberg spin lattice without any symmetry.

Parameters

width	unit cell width
depth	unit cell depth
spint	total spin on each site
site_classes	class of each site (tensor to be placed there), empty for different tensors on all sites

References syten::Tensor< rank >::add(), syten::IPEPS::OneOp::dirs, syten::genRepNil(), syten::Inc, std::iota(), syten::makeZero(), syten::Tensor< rank >::push_back(), std::round(), std::vector< T >::size(), syten::sqrt(), SYTEN_ASSERT_MSG, and syten::to_string_def().

Referenced by genSpinKagomeSquare(), and syten::Pyten::init_ipeps_latgen().

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