Fig. 1 | Nature Communications

Fig. 1

From: Out-of-equilibrium quantum magnetism and thermalization in a spin-3 many-body dipolar lattice system

Fig. 1

Sketch of the experiment. a We consider an assembly of S = 3 Cr atoms in an optical lattice prepared in a Mott-insulating state. b Dynamics is driven by dipole–dipole interactions which feature both Ising \(( {\hat S_i^z\hat S_j^z} )\) and exchange \(( {\hat S_i^ + \hat S_j^ - + h.c} )\) terms. c A first π pulse is used to promote all atoms to the most excited spin state. Dipolar relaxation empties doubly occupied sites. Once this is achieved, a second pulse collectively rotates all spins by an angle θ from the external magnetic field B which sets the quantization direction. We then study spin dynamics due to intersite dipole–dipole interactions by registering the relative populations of the different Zeeman states

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