Thermal bosons in 3d optical lattices via tensor networks

摘要: Ultracold atoms in optical lattices are one of the most promising experimental setups to simulate strongly correlated systems. However, efficient numerical algorithms able benchmark experiments at low-temperatures interesting 3d lacking. To this aim, here we introduce an tensor network algorithm accurately thermal states local Hamiltonians any infinite lattice, and dimension. We apply method bosons lattices. In particular, study physics (soft-core hard-core) Bose-Hubbard model on pyrochlore cubic with unprecedented accuracy. Our technique is therefore ideal tool realistic optical-lattice experiments.