Wednesday, January 10 2018
14:00 - 15:15

Alladi Ramakrishnan Hall

Melting of three-sublattice order in triangular Ising anti-ferromagnets with further neighbour couplings

Geet Rakala

Tata Institute of Fundamental Research, Mumbai.

Under second and third nearest neighbour ferromagnetic couplings of the constituent Ising spins, triangular lattice antiferromagnets develop long-range order that distinguishes the three sublattices of the triangular lattice. In this talk, I will chalk out two cluster algorithms which we developed for such frustrated systems and discuss the various melting scenarios of the long-range order. I will also discuss the performance and statistics of the algorithms and show their connection to Brownian motion in a logarithmic potential.

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