290 citations · 446 across the 5 of their papers we have counts for
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Finite-temperature lineshapes in gapped quantum spin chains
Fabian H. L. Essler, Robert M. Konik
We consider the finite-temperature dynamical structure factor (DSF) of gapped quantum spin chains such as the spin one Heisenberg model and the transverse field Ising model in the…
A Luttinger Liquid Coupled to a Quantum Spin Bath: Flow Equation Approach to the Kondo Necklace Model
F. H. L. Essler, T. Kuzmenko, I. A. Zaliznyak
We study a lattice realization of a Luttinger liquid interacting with a bath of quantum spins in terms of an antiferromagnetic S=1/2 Heisenberg chain, where each spin is also coupl…
Spin dynamics of the quasi two dimensional spin-1/2 quantum magnet Cs_2CuCl_4
Martin Y. Veillette, Andrew J. A. James, Fabian H. L. Essler
We study dynamical properties of the anisotropic triangular quantum antiferromagnet Cs_2CuCl_4. Inelastic neutron scattering measurements have established that the dynamical spin c…
Dynamical Properties of one dimensional Mott Insulators
Davide Controzzi, Fabian H. L. Essler, Alexei M. Tsvelik
At low energies the charge sector of one dimensional Mott insulators can be described in terms of a quantum Sine-Gordon model. Using exact results derived from integrability it is…