Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
How shock waves travel through a superfluid provides clues to understanding the deeper nature of Bose–Einstein condensation. An optical analogue that behaves as a pure superfluid could tell us what these clues mean.
Experimental evidence for discontinuous behaviour of the magnetization suggests that ferromagnetic transitions at very low temperatures are different from their high-temperature brethren, for which the phase transitions are usually continuous.
The ability to distinguish the high-harmonic emission generated by individual half-cycles of a driving laser leads to a simpler approach to characterizing the laser pulse and isolating a single attosecond pulse.
Traditionally, complex networks are classified on the basis of their global properties. But taking into account the modular structure of the network leads to a better understanding of how the underlying systems work.