Abstract The Bose–Einstein condensate (BEC) is a fascinating state of matter predicted to
occur for particles obeying Bose statistics. Although the BEC has been observed with …

This article reviews experimental and theoretical work on Bose-Einstein condensation in
quantum magnets. These magnets are natural realizations of gases of interacting bosons …

We present a scheme to perform an iterative variational optimization with infinite projected
entangled-pair states, a tensor network ansatz for a two-dimensional wave function in the …

Band insulators appear in a crystalline system only when the filling—the number of electrons
per unit cell and spin projection—is an integer. At fractional filling, an insulating phase that …

We simulate the Shastry-Sutherland model in two dimensions by means of infinite projected
entangled-pair states (iPEPS)—a variational tensor network method where the accuracy can …

The 2-dimensional layered oxide material SrCu2 (BO3) 2, long studied as a realization of
the Shastry-Sutherland spin topology, exhibits a range of intriguing physics as a function of …

The magnetization process of the orthogonal-dimer antiferromagnet SrCu 2 (BO 3) 2 is
investigated in high magnetic fields of up to 118 T. A 1/2 plateau is clearly observed in the …

Using infinite projected entangled-pair states, we show that the Shastry-Sutherland model in
an external magnetic field has low-magnetization plateaus which, in contrast to previous …

Strong geometrical frustration in magnets leads to exotic states such as spin liquids, spin
supersolids, and complex magnetic textures. SrCu2 (BO3) 2, a spin-1/2 Heisenberg …

Motivated by the novel phenomena observed in the layered material SrCu 2 (BO 3) 2, the
Shastry-Sutherland model (SSM) has been extensively studied as the minimal model for …