Exact evaluation of the nearest-neighbor Jastrow wave function for the two-dimensional spin-(1/2 Heisenberg antiferromagnet

Wolfgang von der Linden, Michael Ziegler, Peter Horsch

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Abstract

Based on the equivalence between the spin-(1/2 Heisenberg antiferromagnet and the hard-core Bose gas we investigate a Jastrow trial wave function, which has proven to give an excellent ground-state energy. In this paper the energy and the spin-spin correlation functions are evaluated analytically by representing them in terms of partition sums of two-dimensional Ising-like models expressed as integrals over Grassmann variables.
Original languageEnglish
Pages (from-to)7435
Number of pages1
JournalPhysical review / E
Volume40
Issue number10
DOIs
Publication statusPublished - 1989

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Antiferromagnet
Wave Function
Nearest Neighbor
wave functions
evaluation
Evaluation
Bose Gas
Ground State Energy
Ising
Ising model
equivalence
Correlation Function
partitions
Partition
Equivalence
ground state
energy
Energy
gases
Model

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Exact evaluation of the nearest-neighbor Jastrow wave function for the two-dimensional spin-(1/2 Heisenberg antiferromagnet. / von der Linden, Wolfgang; Ziegler, Michael; Horsch, Peter.

In: Physical review / E, Vol. 40, No. 10, 1989, p. 7435.

Research output: Contribution to journalArticleResearchpeer-review

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