3 years ago

Correspondence between a shaken honeycomb lattice and the Haldane model.

Giulio Pettini, Michele Modugno

We investigate the correspondence between the tight-binding Floquet Hamiltonian of a periodically modulated honeycomb lattice and the Haldane model. We show that - though the two systems share the same topological phase diagram, as reported in a breakthrough experiment with ultracold atoms in a stretched honeycomb lattice [Jotzu et al., Nature 515, 237 (2014)] - the corresponding Hamiltonians are not equivalent, the one of the shaken lattice presenting a much richer structure.

Publisher URL: http://arxiv.org/abs/1708.00242

DOI: arXiv:1708.00242v1

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