genFermiHubbardSU2()

MPS::Lattice syten::MPS::Lat::SU2Fermion::genFermiHubbardSU2

(

Index const

length

)

Generates a chain of Fermi-Hubbard sites.

Parameters

length

the length of the chain

Remarks

Prefactors ±sqrt(2) are inspired by Weichselbaum, Annals of Physics 327 (2012), 2972-3047, pg. 3038 Table C.1.

For a detailed discussion of the need for parity operators, see the documentation for the U(1)×U(1) symmetry Fermi-Hubbard model.

Implemented Single-Site Operators

ch and c create and annihilate a single particle, n measures the particle number on the site and nb gives 1 iff the site is doubly-occupied.

References syten::Basis::add(), syten::Tensor< rank >::add(), std::fill(), syten::MPS::genMPOId(), syten::genRepsSU2(), syten::genRepSU2Fundamental(), syten::genRepSU2Vacuum(), syten::MPS::Lat::genSU2Parity(), syten::Inc, and syten::Tensor< rank >::reduce().

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