42 citations · 109 across the 7 of their papers we have counts for
7 papers
Liouvillian Exceptional Points in Quantum Brickwork Circuits
Vladislav Popkov, Mario Salerno
We demonstrate that Liouvillian exceptional points (LEPs), previously explored only in continuous Lindbladian dynamics, also emerge in discrete brickwork completely positive trace-…
Manifolds of exceptional points and effective Zeno limit of an open two-qubit system
Vladislav Popkov, Carlo Presilla, Mario Salerno
We analytically investigate the Liouvillian exceptional point manifolds (LEPMs) of a two-qubit open system, where one qubit is coupled to a dissipative polarization bath. Exploitin…
Alternation of sign of magnetization current in driven XXZ chains with twisted XY boundary gradients
V. Popkov
We investigate an open XXZ spin 1/2 chain driven out of equilibrium by coupling with boundary reservoirs targeting different spin orientations in XY plane. Symmetries of the model…
Manipulating energy and spin currents in nonequilibrium systems of interacting qubits
Vladislav Popkov, Roberto Livi
We consider generic interacting chain of qubits, which are coupled at the edges to baths of fixed polarizations. We can determine the nonequilibrium steady states, described by the…
Reduced density matrix and entanglement entropy of permutationally invariant quantum many-body systems
V. Popkov, Mario Salerno
In this paper we discuss the properties of the reduced density matrix of quantum many body systems with permutational symmetry and present basic quantification of the entanglement…
Scaling of the von Neumann entropy across a finite temperature phase transition
Vladislav Popkov, Mario Salerno
The spectrum of the reduced density matrix and the temperature dependence of the von Neumann entropy (VNE) are analytically obtained for a system of hard core bosons on a complete…
Hydrodynamic limit of multi-chain driven diffusive models
V. Popkov, M. Salerno
A new class of models, generalizing Asymmetric Exclusion Process for many parallel interacting channels, is proposed. We couple the models with boundary reservoirs, study boundary-…