Diagnosing Fractionalization from the Spin Dynamics of Z_{2} Spin Liquids on the Kagome Lattice by Quantum Monte Carlo Simulations

Physical Review Letters
Jonas Becker, S Wessel

Abstract

Based on large-scale quantum Monte Carlo simulations, we examine the dynamical spin structure factor of the Balents-Fisher-Girvin kagome lattice spin-1/2 model, which is known to harbor an extended Z_{2} quantum spin liquid phase. We use a correlation-matrix sampling scheme combined with a stochastic analytic continuation method to resolve the spectral functions of this anisotropic quantum spin model with a three-site unit cell. Based on this approach, we monitor the spin dynamics throughout the phase diagram of this model, from the XY-ferromagnetic region to the Z_{2} quantum spin liquid regime. In the latter phase, we identify a gapped two-spinon continuum in the transverse scattering channel, which is faithfully modeled by an effective spinon tight-binding model. Within the longitudinal channel, we identify gapped vison excitations and exhibit indications for the translational symmetry fractionalization of the visons via an enhanced spectral periodicity.

References

Aug 1, 1991·Physical Review. B, Condensed Matter·X G Wen
Feb 15, 2001·Physical Review Letters·T Senthil, M P Fisher
Nov 22, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Olav F Syljuåsen, Anders W Sandvik
May 21, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Fabien AletMatthias Troyer
May 21, 2005·Physical Review Letters·D N Sheng, Leon Balents
Dec 13, 2006·Physical Review Letters·S V IsakovA Paramekanti
Oct 15, 2008·Physical Review Letters·H C JiangD N Sheng
Mar 12, 2010·Nature·Leon Balents
Jan 17, 2012·Science·Sergei V IsakovMatthew B Hastings
Sep 26, 2012·Physical Review Letters·Stefan DepenbrockUlrich Schollwöck
Nov 9, 2016·Reports on Progress in Physics·Lucile Savary, Leon Balents
Apr 15, 2017·Physical Review Letters·H J LiaoT Xiang
Apr 22, 2017·Physical Review Letters·M Lohöfer, S Wessel
Jun 18, 2017·Physical Review Letters·Siddhardh C MorampudiFrank Wilczek
Oct 28, 2017·Nature Communications·Stephen M WinterRoser Valentí
Oct 28, 2017·Physical Review Letters·Matthias GohlkeFrank Pollmann
May 15, 2018·Physical Review Letters·Chun-Jiong HuangZi Yang Meng
Sep 1, 2018·Physical Review Letters·Guang-Yu SunZi Yang Meng

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Citations

Sep 1, 2018·Physical Review Letters·Guang-Yu SunZi Yang Meng
Jan 21, 2021·Proceedings of the National Academy of Sciences of the United States of America·Rhine SamajdarSubir Sachdev

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