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15 papers · 2 filters
Scalability of GHZ and random-state entanglement in the presence of decoherence
Leandro Aolita, Daniel Cavalcanti, Antonio Acín +4
We derive analytical upper bounds for the entanglement of generalized Greenberger-Horne-Zeilinger states coupled to locally depolarizing and dephasing environments, and for local t…
Coherent Exciton Dynamics and Trapping in Topologically Disordered Systems
Oliver Muelken, Alexander Blumen
We analyze the coherent dynamics of excitons in three dimensional topologically disordered networks with traps. If the interactions between the nodes of the network are long ranged…
Stochastic jump processes for non-Markovian quantum dynamics
Heinz-Peter Breuer, Jyrki Piilo
It is shown that non-Markovian master equations for an open system which are local in time can be unravelled through a piecewise deterministic quantum jump process in its Hilbert s…
Thermal non-equilibrium effects in quantum reflection
Viola Druzhinina, Marcel Mudrich, Florian Arnecke +2
We show that the quantum reflection coefficient of ultracold heavy atoms scattering off a dielectric surface can be tuned in a wide range by suitable choice of surface and environm…
Universality in open system entanglement dynamics
Markus Tiersch, Fernando de Melo, Andreas Buchleitner
We show that the entanglement evolution of an open quantum system is the same for the vast majority of initial pure states, in the limit of large Hilbert space dimensions.
Quantum Semi-Markov Processes
Heinz-Peter Breuer, Bassano Vacchini
We construct a large class of non-Markovian master equations that describe the dynamics of open quantum systems featuring strong memory effects, which relies on a quantum generaliz…