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Xenophon Zotos
Researcher at University of Crete
Publications - 96
Citations - 2597
Xenophon Zotos is an academic researcher from University of Crete. The author has contributed to research in topics: Heisenberg model & Bethe ansatz. The author has an hindex of 25, co-authored 94 publications receiving 2342 citations. Previous affiliations of Xenophon Zotos include University of Fribourg & Foundation for Research & Technology – Hellas.
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Transport and conservation laws
TL;DR: In this article, the effect of conservation laws on the finite-temperature transport properties in one-dimensional integrable quantum many-body systems was studied and the energy current is closely related to the first conservation law in these systems and therefore the thermal transport coefficients are anomalous.
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Finite Temperature Drude Weight of the One-Dimensional Spin- 1/2 Heisenberg Model
TL;DR: In this article, the zero frequency contribution (Drude weight) to the spin current correlations was analyzed for the easy plane antiferromagnetic Heisenberg model, using the Bethe ansatz method.
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Integrability and ideal conductance at finite temperatures.
TL;DR: Analytical evidence is presented, using the Bethe ansatz method, that D(T>0) is finite in the integrable case where themass of the particle equals the mass of the fermions and numerical evidence that it vanishes in the nonintegrable one of unequal masses.
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Unusual Phonon Heat Transport in α -RuCl 3 : Strong Spin-Phonon Scattering and Field-Induced Spin Gap
Richard Hentrich,Anja U. B. Wolter,Xenophon Zotos,Xenophon Zotos,Wolfram Brenig,Domenic Nowak,Anna Isaeva,Thomas Doert,Arnab Banerjee,P. Lampen-Kelley,P. Lampen-Kelley,David Mandrus,David Mandrus,Stephen E. Nagler,Jennifer Sears,Young-June Kim,Bernd Büchner,Bernd Büchner,Christian Hess,Christian Hess +19 more
TL;DR: The highly unusual low-temperature heat conductivity κ of α-RuCl_{3}, a prime candidate for realizing such physics, is unveiled: beyond a magnetic field of B_{c}≈7.5 T, κ increases by about one order of magnitude, both for in-plane as well as out-of-plane transport.
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Evidence for ideal insulating or conducting state in a one-dimensional integrable system.
Xenophon Zotos,Peter Prelovšek +1 more
TL;DR: Using numerical diagonalization techniques, the finite temperature/frequency conductance of a one dimensional model of interacting spinless fermions is analyzed and indicates a fundamental difference between integrable and non-integrable cases.