GROUND-STATE FLUCTUATIONS IN RUNG-DIMERIZED SPIN LADDERS-Reference-Cited by-同舟云学术

GROUND-STATE FLUCTUATIONS IN RUNG-DIMERIZED SPIN LADDERS

Published:2011-04-10 Issue:09 Volume:25 Page:1293-1300
ISSN:0217-9792
Container-title:International Journal of Modern Physics B
language:en
Short-container-title:Int. J. Mod. Phys. B

Author:

BIBIKOV P. N.¹

Affiliation:

1. Saint-Petersburg State University, 198504 Ulyanovskaya 1, Petrodvorets, Saint-Petersburg, Russia

Abstract

Treating an exactly rung-dimerized spin ladder as a reference model we study perturbatively zero temperature quantum fluctuations in spin ladders with slightly destroyed rung-dimerization. Analytic expressions are obtained for the gas parameter (density of rung-triplets) and the ground-state energy per rung. At a strong diagonal frustration as well as at a rather strong antiferromagnetic rung coupling these results well agree with the previous numerical calculations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217979211100023

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