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Cover Art
Author Knolle, Johannes, author.

Title Dynamics of a quantum spin liquid / Johannes Knolle.

Published Cham : Springer, 2016.


Location Call No. Status
Physical description 1 online resource (xv, 140 pages) : illustrations (some color)
Series Springer theses
Springer theses.
Springer English/International eBooks 2016 - Full Set
Notes "Doctoral thesis accepted by the Max Planck Institute for the Physics of Complex Systems, Dresden, Germany."
Bibliography Includes bibliographical references.
Contents Introduction -- Kitaev's Honeycomb Lattice Model -- Dynamic Spin Correlations -- Mapping to a Quantum Quench -- Results for the Structure Error -- Non-Abelian Phase and the Effect of Disorder -- Raman Scattering -- Conclusion and Outlook -- Appendix A: Pfaffians from Path Integrals -- Appendix B: X-Ray Edge and Singular Integral Equations -- Appendix C: Exact Diagonalization of Four Dimers -- Appendix D: Calculation of Matrix Elements.
Summary This thesis presents an exact theoretical study of dynamical correlation functions in different phases of a two-dimensional quantum spin liquid. By calculating the dynamical spin structure factor and the Raman scattering cross section, this thesis shows that there are salient signatures--qualitative and quantitative--of the Majorana fermions and the gauge fluxes emerging as effective degrees of freedom in the exactly solvable Kitaev honeycomb lattice model. The model is a representative of a class of spin liquids with Majorana fermions coupled to Z2 gauge fields. The qualitative features of the response functions should therefore be characteristic for this broad class of topological states.
Other author SpringerLink issuing body.
Subject Quantum theory.
Quantum liquids.
Electronic books.
ISBN 9783319239538 electronic bk.
3319239538 electronic bk.
9783319239514 print