Speaker
Dr
Teimuraz Vekua
(Leibniz University of Hannover)
Description
We will discuss possibility of simulating exotic phases of
orbitally degenerate frustrated antiferomagnets in cold
gases. Two component Fermi gas loaded in the p-bands of the
zig-zag type optical lattice can mimic solid state
spin-orbital models such as transition-metal oxides with
partially filled d-levels, with the interesting advantage of
reviving the quantum nature of orbital fluctuations. As a
result of interplay between lattice geometry and orbital
degeneracy number of unusual phases can be realized,
including those with topological order.
The talk will be based on 2 works, one published in:
G. Sun, G. Jackeli, L. Santos, and T. Vekua, Phys. Rev. B
86, 155159 (2012).
Primary author
Dr
Teimuraz Vekua
(Leibniz University of Hannover)
