7 papers
Pairing-induced phase transition in the non-reciprocal Kitaev chain
Pietro Brighi, Andreas Nunnenkamp
Investigating the robustness of non-reciprocity in the presence of competing interactions is central to understanding non-reciprocal quantum matter. In this work, we use reservoir…
Dissipative quantum North-East-Center model: steady-state phase diagram, universality and nonergodic dynamics
Pietro Brighi, Alberto Biella
In this work we study the dissipative quantum North-East-Center (NEC) model: a two-dimensional spin-1/2 lattice subject to chiral, kinetically constrained dissipation and coherent…
Finite steady-state current defies non-Hermitian many-body localization
Pietro Brighi, Marko Ljubotina, Federico Roccati +1
Non-Hermitian many-body localization (NH MBL) has emerged as a possible scenario for stable localization in open systems, as suggested by spectral indicators identifying a putative…
Probing the many-body localized spin-glass phase through quench dynamics
Pietro Brighi, Marko Ljubotina, Maksym Serbyn
Eigenstates of quantum many-body systems are often used to define phases of matter in and out of equilibrium; however, experimentally accessing highly excited eigenstates is a chal…
Restoring thermalization in long-range quantum magnets with staggered magnetic fields
Lucas Winter, Pietro Brighi, Andreas Nunnenkamp
Quantum systems with strong long-range interactions are thought to resist thermalization because of their discrete energy spectra. We show that applying a staggered magnetic field…
Anomalous transport in the kinetically constrained quantum East-West model
Pietro Brighi, Marko Ljubotina
We study a chaotic particle-conserving kinetically constrained model, with a single parameter which allows us to break reflection symmetry. Through extensive numerical simulations…