The combination of topology and quantum criticality can give rise to an exotic mix of
counterintuitive effects. Here, we show that unexpected topological properties take place in …

In recent years, the systems comprising of bosonic atoms confined to optical lattices at ultra-
cold temperatures have demonstrated tremendous potential to unveil novel quantum …

Motivated directly by recent trapped-ion quantum simulation experiments, we carry out a
comprehensive study of the phase diagram of a spin-1 chain with XXZ-type interactions that …

We review exact numerical results for one-dimensional quantum systems with half-filled
bands. The topics covered include Peierls transitions in Holstein, Fröhlich, Su-Schrieffer …

Berezinskii-Kosterlitz-Thouless transition of the classical XY model is reinvestigated,
combining the tensor network renormalization (TNR) and the level spectroscopy method …

One-dimensional gapped phases that avoid any symmetry breaking have drawn enduring
attention. In this paper, we study such phases in a bond-alternating spin-1 K-Γ chain built of …

The mixed-spin Ising-Heisenberg and Heisenberg branched chains whose magnetic
backbone consists of regularly alternating spins 1/2 and 5/2, the latter of which are …

In this study, we delve into the intricate ground state phase diagram of anisotropic spin-1/2
XXZ chains under the uniform Gamma interaction. Employing the robust infinite time …

Scaling aspects of Gaussian topological phase transitions in quantum spin chains are
investigated using the prototypical one-dimensional spin-1 XXZ Heisenberg model with …

The spin-1 Haldane chain is an example of the symmetry-protected-topological (SPT) phase
in one dimension. Experimental realization of the spin chain materials usually involves both …