374 citations · 1.2k across the 55 of their papers we have counts for
6 papers · 1 filter
Deconfined quantum critical points in fermionic systems with spin-charge separation
Niccolò Baldelli, Arianna Montorsi, Sergi Julià-Farré +3
Deconfined quantum critical points are intriguing transition points not predicted by the Landau-Ginzburg-Wilson symmetry-breaking paradigm which are usually identified by the appea…
Interacting second-order topological insulators in one-dimensional fermions with correlated hopping
A. Montorsi, U. Bhattacharya, Daniel González-Cuadra +3
Higher-order topological crystalline phases in low-dimensional interacting quantum systems represent a challenging and largely unexplored research topic. Here, we derive a Hamilton…
Low energy quantum regimes of 1D dipolar Hubbard model with correlated hopping
Serena Fazzini, Luca Barbiero, Arianna Montorsi
We apply the bosonization technique to derive the phase diagram of a balanced unit density two-component dipolar Fermi gas in a one dimensional lattice geometry. The considered int…
Violation of Cluster Decomposition and Absence of Light-Cones in Local Integer and Half-Integer Spin Chains
L. Dell'Anna, O. Salberger, L. Barbiero +2
We compute the ground state correlation functions of an exactly solvable chain of integer spins, recently introduced in [R. Movassagh and P. W. Shor, arXiv:1408.1657], whose ground…
How Hidden Orders Generate Gaps in 1D Fermionic Systems
Luca Barbiero, Arianna Montorsi, Marco Roncaglia
We demonstrate that hidden long range order is always present in the gapped phases of interacting fermionic systems on one dimensional lattices. It is captured by correlation funct…
Phase separation and pairing regimes in the one-dimensional asymmetric Hubbard model
L. Barbiero, M. Casadei, M. Dalmonte +3
We address some open questions regarding the phase diagram of the one-dimensional Hubbard model with asymmetric hopping coefficients and balanced species. In the attractive regime…