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 [G. Jotzuet al., Nature (London) 515,237(2014)]—the corresponding Hamiltonians are not equivalent, the one of the shaken lattice presenting a much richer structure.

Correspondence between a shaken honeycomb lattice and the Haldane model / Modugno, Michele; Pettini, Giulio. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - ELETTRONICO. - 96:(2017), pp. 1-8. [10.1103/PhysRevA.96.053603]

Correspondence between a shaken honeycomb lattice and the Haldane model

Modugno, Michele;Pettini, Giulio
2017

Abstract

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 [G. Jotzuet al., Nature (London) 515,237(2014)]—the corresponding Hamiltonians are not equivalent, the one of the shaken lattice presenting a much richer structure.
2017
96
1
8
Modugno, Michele; Pettini, Giulio
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1103474
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