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25 papers · 2 filters
Enhancing the spreading of quantum walks on star graphs by additional bonds
Anastasiia Anishchenko, Alexander Blumen, Oliver Muelken
We study the dynamics of continuous-time quantum walks (CTQW) on networks with highly degenerate eigenvalue spectra of the corresponding connectivity matrices. In particular, we co…
Nonlocal memory effects in the dynamics of open quantum systems
Elsi-Mari Laine, Heinz-Peter Breuer, Jyrki Piilo +2
We explore the possibility to generate nonlocal dynamical maps of an open quantum system through local system-environment interactions. Employing a generic decoherence process indu…
Continuous-variable quantum compressed sensing
Matthias Ohliger, Vincent Nesme, David Gross +2
We significantly extend recently developed methods to faithfully reconstruct unknown quantum states that are approximately low-rank, using only a few measurement settings. Our new…
Truly work-like work extraction
Johan Aberg
The work content of non-equilibrium systems in relation to a heat bath is often analyzed in terms of expectation values of an underlying random work variable. However, we show that…
One- and two-dimensional photonic crystal micro-cavities in single crystal diamond
Janine Riedrich-Möller, Laura Kipfstuhl, Christian Hepp +10
The development of solid-state photonic quantum technologies is of great interest for fundamental studies of light-matter interactions and quantum information science. Diamond has…
Experimental control of the transition from Markovian to non-Markovian dynamics of open quantum systems
Bi-Heng Liu, Li Li, Yun-Feng Huang +5
Realistic quantum mechanical systems are always exposed to an external environment. The presence of the environment often gives rise to a Markovian process in which the system lose…