The “sign problem”(SP) is a fundamental limitation to simulations of strongly correlated
matter. It is often argued that the SP is not intrinsic to the physics of particular Hamiltonians …

Many transition-metal oxides show very large (“colossal”) magnitudes of the dielectric
constant and thus have immense potential for applications in modern microelectronics and …

The density matrix renormalization group (DMRG) has become a powerful numerical
method that can be applied to low-dimensional strongly correlated fermionic and bosonic …

Experimental advances in the fabrication and characterization of few-layer materials stacked
at a relative twist of small angle have recently shown the emergence of flat energy bands. As …

We propose a new approach to study quantum phase transitions in low-dimensional lattice
models. It is based on studying the von Neumann entropy of two neighboring central sites in …

We study the zero-temperature phase diagram of the half-filled one-dimensional ionic
Hubbard model. This model is governed by the interplay of the on-site Coulomb repulsion …

We propose an analog quantum simulator for simulating real-time dynamics of (1+ 1)-
dimensional non-Abelian gauge theory well within the existing capacity of ultracold-atom …

We analyze two different fermionic systems that defy Mott localization showing a metallic
ground state at integer filling and very large Coulomb repulsion. The first is a multiorbital …

Initial characterizations of the fermion sign problem focused on its evolution with spatial
lattice size L and inverse temperature β, emphasizing the implications of the exponential …

We realize and study the ionic Hubbard model using an interacting two-component gas of
fermionic atoms loaded into an optical lattice. The bipartite lattice has a honeycomb …