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Exact dynamics in dual-unitary quantum circuits
Lorenzo Piroli, Bruno Bertini, J. Ignacio Cirac +1
We consider the class of dual-unitary quantum circuits in dimensions and introduce a notion of ``solvable'' matrix product states (MPSs), defined by a specific condition whic…
Operator Entanglement in Local Quantum Circuits II: Solitons in Chains of Qubits
Bruno Bertini, Pavel Kos, Tomaz Prosen
We provide exact results for the dynamics of local-operator entanglement in quantum circuits with two-dimensional wires featuring ultralocal solitons, i.e. single-site operators wh…
Operator Entanglement in Local Quantum Circuits I: Chaotic Dual-Unitary Circuits
Bruno Bertini, Pavel Kos, Tomaz Prosen
The entanglement in operator space is a well established measure for the complexity of the quantum many-body dynamics. In particular, that of local operators has recently been prop…
Transport in the sine-Gordon field theory: from generalized hydrodynamics to semiclassics
Bruno Bertini, Lorenzo Piroli, Márton Kormos
The semiclassical approach introduced by Sachdev and collaborators proved to be extremely successful in the study of quantum quenches in massive field theories, both in homogeneous…
Exact Correlation Functions for Dual-Unitary Lattice Models in 1+1 Dimensions
Bruno Bertini, Pavel Kos, Tomaz Prosen
We consider a class of quantum lattice models in dimensions represented as local quantum circuits that enjoy a particular "dual-unitarity" property. In essence, this property…
Entanglement evolution and generalised hydrodynamics: interacting integrable systems
Vincenzo Alba, Bruno Bertini, Maurizio Fagotti
We investigate the dynamics of bipartite entanglement after the sudden junction of two leads in interacting integrable models. By combining the quasiparticle picture for the entang…