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Title: Strange correlations in spin-1 Heisenberg antiferromagnets
Authors: Wierschem, Keola
Sengupta, Pinaki
Keywords: DRNTU::Science::Physics::Descriptive and experimental mechanics
Issue Date: 2014
Source: Wierschem, K., & Sengupta, P. (2014). Strange correlations in spin-1 Heisenberg antiferromagnets. Physical Review B- condensed matter and materials physics, 90(11).
Series/Report no.: Physical Review B
Abstract: We study the behavior of the recently proposed “strange correlator” [Y.-Z. You, Z. Bi, A. Rasmussen, K. Slagle, and C. Xu, Phys. Rev. Lett. 112, 247202 (2014)] in spin-1 Heisenberg antiferromagnetic chains with uniaxial single-ion anisotropy. Using projective quantum Monte Carlo, we are able to directly access the strange correlator in a variety of phases, as well as to examine its critical behavior at a quantum phase transition between trivial and nontrivial symmetry protected topological phases. After finding the expected long-range behavior in these two symmetry conserving phases, we go on to verify the topological nature of two-leg and three-leg spin-1 Heisenberg antiferromagnetic ladders. This demonstrates the power of the strange correlator in distinguishing between trivial and nontrivial symmetry protected topological phases.
DOI: 10.1103/PhysRevB.90.115157
Rights: © 2014 American Physical Society. This paper was published in Physical Review B - Condensed Matter and Materials Physics and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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