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Five years of density matrix embedding theory (1605.05547v1)
Published 31 Mar 2016 in cond-mat.str-el and physics.chem-ph
Abstract: Density matrix embedding theory (DMET) describes finite fragments in the presence of a surrounding environment. In contrast to most embedding methods, DMET explicitly allows for quantum entanglement between both. In this chapter, we discuss both the ground-state and response theory formulations of DMET, and review several applications. In addition, a proof is given that the local density of states can be obtained by working with a Fock space of bath orbitals.
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