03773nam 22007335 450 991025464050332120200702114945.03-319-23953-810.1007/978-3-319-23953-8(CKB)3710000000636314(EBL)4497521(SSID)ssj0001665948(PQKBManifestationID)16455553(PQKBTitleCode)TC0001665948(PQKBWorkID)15000481(PQKB)11543118(DE-He213)978-3-319-23953-8(MiAaPQ)EBC4497521(PPN)193444933(EXLCZ)99371000000063631420160405d2016 u| 0engur|n|---|||||txtccrDynamics of a Quantum Spin Liquid /by Johannes Knolle1st ed. 2016.Cham :Springer International Publishing :Imprint: Springer,2016.1 online resource (150 p.)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053"Doctoral thesis accepted by the Max Planck Institute for the Physics of Complex Systems, Dresden, Germany."3-319-23951-1 Includes bibliographical references.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.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.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053SuperconductivitySuperconductorsMagnetismMagnetic materialsQuantum field theoryString theoryStrongly Correlated Systems, Superconductivityhttps://scigraph.springernature.com/ontologies/product-market-codes/P25064Magnetism, Magnetic Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/P25129Quantum Field Theories, String Theoryhttps://scigraph.springernature.com/ontologies/product-market-codes/P19048Superconductivity.Superconductors.Magnetism.Magnetic materials.Quantum field theory.String theory.Strongly Correlated Systems, Superconductivity.Magnetism, Magnetic Materials.Quantum Field Theories, String Theory.530Knolle Johannesauthttp://id.loc.gov/vocabulary/relators/aut803804MiAaPQMiAaPQMiAaPQBOOK9910254640503321Dynamics of a Quantum Spin Liquid1805308UNINA