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- University of GdańskPL161 papers
- National Quantum Information Centre in GdanskPL99 papers
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- Jagiellonian UniversityPL34 papers
- Los Alamos National LaboratoryUS25 papers
- AGH University of KrakowPL20 papers
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- Center for Theoretical PhysicsPL19 papers
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9 papers · 2 filters
Necessary and sufficient conditions for state-independent measurement contextual scenarios
Ravishankar Ramanathan, Pawel Horodecki
The problem of identifying measurement scenarios capable of revealing state-independent contextuality in a given Hilbert space dimension is considered. We begin by showing that for…
Constructive entanglement test from triangle inequality
Łukasz Rudnicki, Zbigniew Puchała, Paweł Horodecki +1
We derive a simple lower bound on the geometric measure of entanglement for mixed quantum states in the case of a general multipartite system. The main ingredient of the presented…
Conjectured strong complementary-correlations tradeoff
Andrzej Grudka, Michał Horodecki, Paweł Horodecki +3
We conjecture new uncertainty relations which restrict correlations between results of measurements performed by two separated parties on a shared quantum state. The first uncertai…
Relation between semi- and fully-device-independent protocols
Hong-Wei Li, Piotr Mironowicz, Marcin Pawlowski +7
We study the relation between semi and fully device independent protocols. As a tool, we use the correspondence between Bell inequalities and dimension witnesses. We present a meth…
Quantifying Contextuality
A. Grudka, K. Horodecki, M. Horodecki +5
Contextuality is central to both the foundations of quantum theory and to the novel information processing tasks. Although it was recognized before Bell's nonlocality, despite some…
Decoherence-Free Communication over Multiaccess Quantum Channels
Maciej Demianowicz
In this paper we consider decoherence-free communication over multiple access and -user quantum channels. First, we concentrate on a hermitian unitary noise model for a two-…