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[Fizinfo] Szeminárium - Seminar, 2019. okt 1-Balla Péter

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  • From: Szeminárium koordinátor <szfi-seminar AT>
  • To: SZFI Szeminárium <seminar AT>,Fizinfo <fizinfo AT>
  • Cc: Fizinfo <fizinfo AT>
  • Subject: [Fizinfo] Szeminárium - Seminar, 2019. okt 1-Balla Péter
  • Date: Thu, 26 Sep 2019 11:12:39 +0200 (CEST)
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SZFI Szeminárium
Balla Péter
(Wigner FK SZFI)
Affine lattice construction of spiral surfaces in classical Heisenberg models
Frustration in classical spin models can lead to degenerate ground states
without long-range order. In reciprocal space, these degeneracies appear as
manifolds of wave vectors, their dimensionality increasing with the degree of
frustration and the robustness of the disordered spin-liquid state. Here, we
present a recipe to explicitly construct Heisenberg models on Bravais
lattices with codimension-one manifolds, i.e., lines in two dimensions and
surfaces with different Euler characteristics in three dimensions.
Furthermore, we discuss the role of thermal and quantum fluctuations in
stabilizing ordered states.2019. október 1. kedd, 10.00
Wigner FK SZFI, 1. ép. 1. em. nagy előadóterem
Az előadás nyelve: magyar
Minden érdeklődőt szívesen látunk!
Juhász Róbertszfi-seminar AT

  • [Fizinfo] Szeminárium - Seminar, 2019. okt 1-Balla Péter, Szeminárium koordinátor, 09/26/2019

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