Supersolid formation in a quantum gas breaking a continuous translational symmetry

@article{Lonard2017SupersolidFI,
  title={Supersolid formation in a quantum gas breaking a continuous translational symmetry},
  author={Julian L{\'e}onard and Andrea Morales and Philip Zupancic and Tilman Esslinger and Tobias Donner},
  journal={Nature},
  year={2017},
  volume={543},
  pages={87-90}
}
The concept of a supersolid state combines the crystallization of a many-body system with dissipationless flow of the atoms from which it is built. This quantum phase requires the breaking of two continuous symmetries: the phase invariance of a superfluid and the continuous translational invariance to form the crystal. Despite having been proposed for helium almost 50 years ago, experimental verification of supersolidity remains elusive. A variant with only discrete translational symmetry… Expand
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