activity
20242026
collaborators

11 papers

quant-ph2026

Schrödinger and Heisenberg non-Markovianity in quantum information tasks

Federico Settimo, Kimmo Luoma, Jyrki Piilo +3

Quantum non-Markovianity has been widely studied and connected to the existence of memory effects in the dynamics of open systems. Surprisingly, working in the Schrödinger or in t…

quant-ph2026

Revivals of Bell nonlocality require Schrödinger and Heisenberg non-Markovianity

Federico Settimo, Kimmo Luoma, Jyrki Piilo +3

Bell nonlocality is a key resource in quantum information, demonstrating the nonclassicality of quantum theory. Noise, however, {is in general detrimental to} nonlocality, and can…

quant-ph2026

Beyond Robertson-Schrödinger: A General Uncertainty Relation Unveiling Hidden Noncommutative Trade-offs

Gen Kimura, Aina Mayumi, Hiromichi Ohno +2

We report a universal improvement to the standard Robertson--Schrödinger uncertainty relation. Our result shows that the Robertson--Schrödinger lower bound can be supplemented by…

quant-ph2026

Divisibility of dynamical maps: Schrödinger vs. Heisenberg picture

Federico Settimo, Andrea Smirne, Kimmo Luoma +3

Divisibility of dynamical maps is a central notion in the study of quantum non-Markovianity, providing a natural framework to characterize memory effects via time-local master equa…

quant-ph2025

Dynamics of Open Quantum Systems with Initial System-Environment Correlations via Stochastic Unravelings

Federico Settimo, Kimmo Luoma, Dariusz Chruściński +3

In standard treatments of open quantum systems, the reduced dynamics is described starting from the assumption that the system and the environment are initially uncorrelated. This…

quant-ph2025

A universal constraint for relaxation rates for quantum Markov generators: complete positivity and beyond

Dariusz Chruściński, Frederik vom Ende, Gen Kimura +1

Relaxation rates are key characteristics of quantum processes, as they determine how quickly a quantum system thermalizes, equilibrates, decoheres, and dissipates. While they play…