495 citations · 6.4k across the 148 of their papers we have counts for
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The spin-incoherent Luttinger liquid
Gregory A. Fiete
In contrast to the well known Fermi liquid theory of three dimensions, interacting one-dimensional and quasi one-dimensional systems of fermions are described at low energy by an e…
Non-equilibrium charge noise and dephasing from a spin-incoherent Luttinger liquid
Gregory A. Fiete, Markus Kindermann
We theoretically investigate the charge noise and dephasing in a metallic device in close proximity to a spin incoherent Luttinger liquid with a small but finite current. The frequ…
Effective Hamiltonians for some highly frustrated magnets
Doron L. Bergman, Ryuichi Shindou, Gregory A. Fiete +1
In prior work, the authors developed a method of degenerate perturbation theory about the Ising limit to derive an effective Hamiltonian describing quantum fluctuations in a half-p…
Degenerate perturbation theory of quantum fluctuations in a pyrochlore antiferromagnet
Doron L. Bergman, Ryuichi Shindou, Gregory A. Fiete +1
We study the effect of quantum fluctuations on the half-polarized magnetization plateau of a pyrochlore antiferromagnet. We argue that an expansion around the easy axis limit is ap…
Mechanisms of degeneracy breaking in pyrochlore antiferromagnets
Doron L. Bergman, Ryuichi Shindou, Gregory A. Fiete +1
Motivated by the low temperature magnetization curves of several spinel chromites, we theoretically study classical mechanisms of degeneracy lifting in pyrochlore antiferromagnets.…
Fermi-edge singularity in a spin-incoherent Luttinger liquid
Gregory A. Fiete
We theoretically investigate the Fermi edge singularity in a spin incoherent Luttinger liquid. Both cases of finite and infinite core hole mass are explored, as well as the effect…