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and strongrepulsive interactions. A special feature of these systems is that the binding energy scales withsingle particle tunneling t rather than exchange interactions, since ef f ective attraction arises fr...

arXiv:131.568v1[cond-mat.str-el]18Dec013Extremelyslowspinrelaxationinaspin-unpolarizedquantu... . TheCSFE with spin numbers S=S z =1 is the lowest en-ergy excitation in the system (Fig. 1). Yet i...