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Title:

Dynamics of a quantum spin liquid beyond integrability: The Kitaev-Heisenberg-Γ model in an augmented parton mean-field theory

Document type:
Zeitschriftenaufsatz
Author(s):
Knolle, Johannes; Bhattacharjee, Subhro; Moessner, Roderich
Abstract:
We present an augmented parton mean-field theory which (i) reproduces the exact ground state, spectrum, and dynamics of the quantum spin-liquid phase of Kitaev's honeycomb model, and (ii) is amenable to the inclusion of integrability breaking terms, allowing a perturbation theory from a controlled starting point. Thus, we exemplarily study dynamical spin correlations of the honeycomb Kitaev quantum spin liquid within the K−J−Γ model, which includes Heisenberg and symmetric-anisotropic (pseudodip...     »
Journal title:
Physical Review B 2018-04
Year:
2018
Journal volume:
97
Journal issue:
13
Fulltext / DOI:
doi:10.1103/physrevb.97.134432
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
30.04.2018
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