Classical computer simulations of quantum antiferromagnet exhibiting geometrical frustration are very demanding, and quantum simulation allows accessing high-temperature regimes where quantum effects are less relevant. By using a protocol for ultracold bosonic gases in optical lattices, the authors show that it is possible to achieve a regime of negative absolute temperature at which to study the physics of a frustrated Bose-Hubbard model.
- Daisuke Yamamoto
- Takeshi Fukuhara
- Ippei Danshita
