Symmetry adapted finite-cluster solver for quantum Heisenberg model in two dimensions: a real-space renormalization approach / Sinitsyn V. E.,Bostrem I. G.,Ovchinnikov A. S. // JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL. - 2007. - V. 40, l. 4. - P. 645-668.

ISSN/EISSN:

1751-8113 / 1751-8121

Type:

Article

Abstract:

We present a quantum cluster solver for the spin-S Heisenberg model on a two-dimensional lattice. The formalism is based on the real-space renormalization procedure and uses the lattice point group-theoretical analysis and non-Abelian SU(2) spin symmetry technique. The exact diagonalization procedure is used twice at each renormalization group step. The method is applied to the spin-half antiferromagnet on a square lattice, and a calculation of local observables is demonstrated. A symmetry-based truncation procedure is suggested and verified numerically.

Author keywords:

DENSITY-MATRIX RENORMALIZATION; SQUARE LATTICE; SPIN SYSTEMS; ORDER; CHAINS; PHASE; SIZE

DOI:

10.1088/1751-8113/40/4/006

Web of Science ID:

ISI:000244966800010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN 26
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
EISSN	1751-8121
Keywords-Plus	DENSITY-MATRIX RENORMALIZATION; SQUARE LATTICE; SPIN SYSTEMS; ORDER; CHAINS; PHASE; SIZE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary; Physics, Mathematical
ResearcherID-Numbers	Ovchinnikov, Alexander/B-9906-2009
Number-of-Cited-References	42
Usage-Count-Since-2013	4
Journal-ISO	J. Phys. A-Math. Theor.
Doc-Delivery-Number	146XA