The phenomenon of nonclassical rotational inertia (NCRI), in which a body does not rotate with its rotating container, has long been thought to be peculiar to Bose-Einstein condensates of certain liquids and gases, in particular liquidHe. In his Perspective, Leggett discusses the experimental obser...
Superconductivity has been observed in moiré systems such as twisted bilayer graphene, which host flat, dispersionless electronic bands. In parallel, theory work has discovered that superconductivity and superfluidity of flat-band systems can be made po
Fluidity, the ability of liquids to flow, is the key property distinguishing liquids from solids. This fluidity is set by the mobile transit atoms moving from one quasi-equilibrium point to the next. The nature of this transit motion is unknown. Here, we show that flow-enabling transits form...
Pines, The Theory of Quantum Liquids: Su- perfluid Bose Liquids (Addison-Wesley, Redwood City, 1990). [5] L. Pitaevskii and S. Stringari, Bose-Einstein Condensation (Clarendon, Oxford, 2003). [6] A. J. Leggett, Quantum Liquids: Bose condensation and Cooper pairing in condensed-matter ...
When changing their parameters over time, in animated sequences, intersecting forms recompose in a continuous way, to generate flowing systems, not with liquids or gases, but with apparent solids passing effortlessly through each other giving rise to complex organic forms that could otherwise probably...