R
Rf Werner
Researcher at University of Osnabrück
Publications - 7
Citations - 1717
Rf Werner is an academic researcher from University of Osnabrück. The author has contributed to research in topics: Ground state & Hamiltonian (quantum mechanics). The author has an hindex of 7, co-authored 7 publications receiving 1555 citations. Previous affiliations of Rf Werner include Dublin Institute for Advanced Studies.
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Journal ArticleDOI
Finitely correlated states on quantum spin chains
TL;DR: In this paper, a construction that yields a class of translation invariant states on quantum spin chains, characterized by the property that the correlations across any bond can be modeled on a finite-dimensional vector space.
Journal ArticleDOI
Exact Antiferromagnetic Ground States of Quantum Spin Chains
TL;DR: In this article, the ground state of a spin-1 Heisenberg antiferromagnet has been computed explicitly for integer spin chains and the correlation functions and other properties.
Book ChapterDOI
Finitely Correlated Pure States
TL;DR: Fannes and Nachtergaele as discussed by the authorsernández et al. proposed a class of states on one-dimensional quantum spin systems called "finitely correlated" states, which can be constructed quite explicitly, which is remarkable, since apart from quasi-free states or convex combinations of product states, there seem to be no states allowing a similarly complete control.
Journal ArticleDOI
Ground states of VBS models on cayley trees
TL;DR: In this article, the authors studied the thermodynamic limit of the ground states of VBS models on a Cayley tree and proved uniqueness for coordination numbersz ⩽ 4 and the occurrence of Neel order for z ⩾ 5.
Journal ArticleDOI
Abundance of translation invariant pure states on quantum spin chains
TL;DR: In this article, a set of translation invariant pure states of a quantum spin chain is constructed, which is the unique ground state of a finite range Hamiltonian with a spectral gap above the ground state energy.