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5 papers · 2 filters
Quantum Walk Topology and Spontaneous Parametric Down Conversion
Graciana Puentes
In a recent detailed research program we proposed to study the complex physics of topological phases by an all optical implementation of a discrete-time quantum walk. The main nove…
Time-optimal control fields for quantum systems with multiple avoided crossings
P. M. Poggi, F. C. Lombardo, D. A. Wisniacki
We study time-optimal protocols for controlling quantum systems which show several avoided level crossings in their energy spectrum. The structure of the spectrum allows us to gene…
Measuring and using non-markovianity
Carlos Pineda, Thomas Gorin, David Davalos +2
We construct measures for the non-Markovianity of quantum evolution with a physically meaningful interpretation. We first provide a general setting in the framework of channel capa…
Sub-Poissonian Statistics of Jamming Limits in Ultracold Rydberg Gases
Jaron Sanders, Matthieu Jonckheere, Servaas Kokkelmans
Several recent experiments have established by measuring the Mandel Q parameter that the number of Rydberg excitations in ultracold gases exhibits sub-Poissonian statistics. This e…
Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
P. M. Poggi, F. C. Lombardo, D. A. Wisniacki
Deriving minimum evolution times is of paramount importance in quantum mechanics. Bounds on the speed of evolution are given by the so called quantum speed limit (QSL). In this wor…