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cond-mat.str-el2007★ 7 cited
Spin dynamics across the superfluid-insulator transition of spinful bosons
Stephen Powell, Subir Sachdev
Bosons with non-zero spin exhibit a rich variety of superfluid and insulating phases. Most phases support coherent spin oscillations, which have been the focus of numerous recent e…
cond-mat.str-el2006★ 5 cited
Excited state spectra at the superfluid-insulator transition out of paired condensates
Stephen Powell, Subir Sachdev
We describe gapped single-particle and collective excitations across a superfluid to insulator quantum phase transition of particles (bosons or fermions) in a periodic potential, w…