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20 papers · 1 filter
Port-based teleportation in arbitrary dimension
Michał Studziński, Sergii Strelchuk, Marek Mozrzymas +1
Port-based teleportation (PBT), introduced in 2008, is a type of quantum teleportation protocol which transmits the state to the receiver without requiring any corrections on the r…
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…
Random access codes and non-local resources
Anubhav Chaturvedi, Marcin Pawlowski, Karol Horodecki
It is known that a PR-BOX (PR), a non-local resource and random access code (RAC), a functionality (wherein Alice encodes 2 bits into 1 bit message and Bob learn…
Scale-invariant freezing of entanglement
Titas Chanda, Tamoghna Das, Debasis Sadhukhan +3
We show that bipartite entanglement in a one-dimensional quantum spin model undergoing time-evolution under local Markovian environments can be frozen over time. We demonstrate thi…