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- University of GdańskPL161 papers
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14 papers · 2 filters
Information transfer during the universal gravitational decoherence
J. K. Korbicz, J. Tuziemski
Recently Pikovski et al. have proposed in [ Pikovski I et al. 2015 Nature Phys. 11, 668] an intriguing universal decoherence mechanism, suggesting that gravitation may play a conce…
Maximal Coherence and the Resource Theory of Purity
Alexander Streltsov, Hermann Kampermann, Sabine Wölk +2
The resource theory of quantum coherence studies the off-diagonal elements of a density matrix in a distinguished basis, whereas the resource theory of purity studies all deviation…
Almost all quantum channels are equidistant
Ion Nechita, Zbigniew Puchała, Łukasz Pawela +1
In this work we analyze properties of generic quantum channels in the case of large system size. We use random matrix theory and free probability to show that the distance between…
Convex set of quantum states with positive partial transpose analysed by hit and run algorithm
Konrad Szymański, Benoît Collins, Tomasz Szarek +1
The convex set of quantum states of a composite system with positive partial transpose is analysed. A version of the hit and run algorithm is used to generate a sequen…
Quantum Coherence as a Resource
Alexander Streltsov, Gerardo Adesso, Martin B. Plenio
The coherent superposition of states, in combination with the quantization of observables, represents one of the most fundamental features that mark the departure of quantum mechan…
Domain shape dependence of semiclassical corrections to energy
Grzegorz Kwiatkowski
Stationary solution of one-dimensional Sine-Gordon system is embedded in a multidimensional theory with explicitly finite domain in the added spatial dimensions. Semiclassical corr…