73 citations · 152 across the 5 of their papers we have counts for
16 papers · 1 filter
Achieving the Quantum Fisher Information Bound in Pseudo-Hermitian Sensors
Ievgen I. Arkhipov, Franco Nori, Şahin K. Özdemir
Non-Hermitian systems have attracted considerable interest over the last few decades due to their unique spectral and dynamical properties not encountered in Hermitian counterparts…
Topological state permutations in time-modulated non-Hermitian multiqubit systems with suppressed non-adiabatic transitions
Ievgen I. Arkhipov, Philippe Lewalle, Franco Nori +2
Non-Hermitian systems have been at the center of intense research for over a decade, partly due to their nontrivial energy topology formed by intersecting Riemann manifolds with br…
Generating high-order quantum exceptional points in synthetic dimensions
Ievgen I. Arkhipov, Fabrizio Minganti, Adam Miranowicz +1
Recently, there has been intense research in proposing and developing various methods for constructing high-order exceptional points (EPs) in dissipative systems. These EPs can pos…
Correspondence between dissipative phase transitions of light and time crystals
Fabrizio Minganti, Ievgen I. Arkhipov, Adam Miranowicz +1
We predict the emergence of a time crystal generated by an incoherently driven and dissipative nonlinear optical oscillator, where the nonlinearity also comes from dissipation. We…
Universal non-Markovianity Detection in Hybrid Open Quantum Systems
Jiří Svozilík, Raúl Hidalgo-Sacoto, Ievgen I. Arkhipov
A universal characterization of non-Markovianity for any open hybrid quantum systems is presented. This formulation is based on the negativity volume of the generalized Wigner func…
Liouvillian exceptional points of any order in dissipative linear bosonic systems: Coherence functions and switching between and anti- symmetries
Ievgen I. Arkhipov, Adam Miranowicz, Fabrizio Minganti +1
Usually, when investigating exceptional points (EPs) of an open Markovian bosonic system, one deals with spectral degeneracies of a non-Hermitian Hamiltonian (NHH), which can corre…