Simulations of quantum phase transitions with cold polar molecules in optical lattices
by
Steffen Mueller(MPI Munich)
→
Europe/Berlin
313
313
Description
Recently cold polar molecules trapped in optical lattices have been used to
engineer strongly correlated quantum phases. The high tunability of the dipolar
interaction and the internal rotational structure of polar molecules is suitable
to realize field induced spin systems that can be efficiently tuned to simulate
important model systems of condensed matter physics. It is possible to demonstrate
the realization of spin 1/2 Heisenberg models and propose a method for the
simulation of the t-J model with strong exchange interactions in the strong
coupling limit. The influence of the slowly decaying dipolar interaction between
polar molecules on the ground state phase diagram at zero temperature of these
models can be studied by employing a spin wave analysis.