Quantum Optics Group (LMU) - Quantum Many Body Systems Division (MPQ)

Realization of the Hofstadter Hamiltonian

Illustration of the cyclotron orbits of atoms exposed to extremely strong effective magnetic fields in specially engineered light crystals. The red arrows show the direction of the effective magnetic field realized in the experiment. Its strength corresponds to several thousands of Tesla magnetic field strength applied to a real material. In the experiment the celebrated Hofstadter-Harper as well as the Quantum Spin Hamiltonian could thereby be implemented.

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