Unconventional transport in 1D quantum magnets

Xenophon Zotos
University of Crete, Iraklion
Wednesday, May 29, 2019
4:00 pm
NS2 1201
I will discuss the theoretical status of the finite temperature and mag-netic field transport in one dimensional quantum magnets. In particular, I will focus on recent developments and open issues related to the transport of integrable models [1, 2, 3, 4] and their analysis using the Bethe ansatz method. These singular systems are commonly used in the description of quasi-one dimensional magnetic materials. They are recently attracting interest in connection to experiments, following the discovery of unusual thermal conductivity in quasi-1D magnetic compounds [5].

[1] X. Zotos, F. Naef and P. Prelovsek, Phys. Rev. B55, 11029 (1997).
[2] Finite temperature Drude weight of the one dimensional spin 1/2 Heisen-berg model, X. Zotos, Physical Review Letters 82, 1764 (1999).
[3] Spin and magnetothermal transport in the S=1/2 XXZ chain, C. Psaroudaki, and X. Zotos, J. Stat. Mech., 063103 (2016).
[4] A TBA description of thermal transport in the XXZ Heisenberg model, X. Zotos, J. Stat. Mech. 103101 (2017).
[5] C. Hess, Eur. Phys. J. Special Topics, 151, 73 (2007).
Sasha Chernyshev