Realization of the Harper Hamiltonian with ultracold atoms in optical lattices

Hirokazu Miyake,Georgios A. Siviloglou,Colin J. Kennedy,William Cody Burton,Wolfgang Ketterle

Lasers and Electro-Optics（2014）

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摘要

We experimentally realized the Harper Hamiltonian with charge neutral, ultracold atoms in optical lattices using laser-assisted tunneling and a potential energy gradient. The energy spectrum of this Hamiltonian is the fractal Hofstadter butterfly.

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关键词

laser cooling,optical lattices,radiation pressure,Harper Hamiltonian,energy spectrum,fractal Hofstadter butterfly,laser assisted tunneling,optical lattices,potential energy gradient,ultracold atoms

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