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15 papers · 2 filters
Remote temporal wavepacket narrowing
K. Sedziak, M. Lasota, P. Kolenderski
Quantum communication and clock synchronization protocols can be significantly enhanced by the careful preparation of the wavepackets of the produced photons. Following the theoret…
System information propagation for spin structures
Piotr Mironowicz, Paweł Należyty, Paweł Horodecki +1
We study in details decoherence process of a spin register, coupled to a spin environment. We use recently developed methods of information transfer study in open quantum systems t…
A Brief History of the GKLS Equation
Dariusz Chruściński, Saverio Pascazio
We reconstruct the chain of events, intuitions and ideas that led to the formulation of the Gorini, Kossakowski, Lindblad and Sudarshan equation.
Star network synchronization led by strong coupling-induced frequency squeezing
Benedetto Militello, Dariusz Chruściński, Anna Napoli
We consider a star network consisting of N oscillators coupled to a central one which in turn is coupled to an infinite set of oscillators (reservoir), which makes it leaking. Two…
Divisibility and Information Flow Notions of Quantum Markovianity for Noninvertible Dynamical Maps
Dariusz Chruściński, Ángel Rivas, Erling Størmer
We analyze the relation between CP-divisibility and the lack of information backflow for an arbitrary -- not necessarily invertible -- dynamical map. It is well known that CP-divis…
Redundant information encoding in QED during decoherence
Jan Tuziemski, Piotr Witas, Jarosław K. Korbicz
Decoherence processes in quantum electrodynamics due to neglecting either the radiation [L. Landau, Z. Phys. 45, 430 (1927)] or the charged matter [N. Bohr and L. Rosenfeld, K. dan…