154 citations · 2k across the 53 of their papers we have counts for
53 papers
Floquet dynamical quantum phase transitions under synchronized periodic driving
R. Jafari, Alireza Akbari, Utkarsh Mishra +1
We study a generic class of fermionic two-band models under synchronized periodic driving, i.e., with the different terms in a Hamiltonian subject to periodic drives with the same…
Achieving spin-squeezed states by quench dynamics in a quantum chain
Hadi Cheraghi, Saeed Mahdavifar, Henrik Johannesson
We study the time evolution of spin squeezing in the one-dimensional spin-1/2 XY model subject to a sudden quantum quench of a transverse magnetic field. The initial state is selec…
Topology of critical chiral phases: multiband insulators and superconductors
Oleksandr Balabanov, Daniel Erkensten, Henrik Johannesson
Recent works have proved the existence of symmetry-protected edge states in certain one-dimensional topological band insulators and superconductors at the gap-closing points which…
Multicriticality in a one-dimensional topological band insulator
Mariana Malard, David Brandao, Paulo Eduardo de Brito +1
A central tenet in the theory of quantum phase transitions (QPTs) is that a nonanalyticity in the ground-state energy in the thermodynamic limit implies a QPT. Here we report on a…
Transport signatures of symmetry protection in 1D Floquet topological insulators
Oleksandr Balabanov, Henrik Johannesson
Time-periodic external drives have emerged as a powerful tool to artificially create topological phases of matter. Prime examples are Floquet topological insulators (FTIs), where a…
Quench dynamics and zero-energy modes: the case of the Creutz model
R. Jafari, Henrik Johannesson, A. Langari +1
In most lattice models, the closing of a band gap typically occurs at high-symmetry points in the Brillouin zone. Differently, in the Creutz model describing a system of spinle…