602 citations
- Centre National de la Recherche ScientifiqueFR46 papers
- European Southern ObservatoryCL28 papers
- Radboud University NijmegenNL25 papers
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- Royal Observatory of BelgiumBE20 papers
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5 papers · 2 filters
Tensor-product vs. geometric-product coding
Diederik Aerts, Marek Czachor
Quantum computation is based on tensor products and entangled states. We discuss an alternative to the quantum framework where tensor products are replaced by geometric products an…
Fermionic Quasi-free States and Maps in Information Theory
B. Dierckx, M. Fannes, M. Pogorzelska
This paper and the results therein are geared towards building a basic toolbox for calculations in quantum information theory of quasi-free fermionic systems. Various entropy and r…
Composition of quantum states and dynamical subadditivity
Wojciech Roga, Mark Fannes, Karol Zyczkowski
We introduce a composition of quantum states of a bipartite system which is based on the reshuffling of density matrices. This non-Abelian product is associative and stems from the…
Instantaneous processing of "slow light": amplitude-duration control, storage, and splitting
R. N. Shakhmuratov, A. A. Kalachev, J. Odeurs
Nonadiabatic change of the control field or of the low-frequency coherence allows for an almost instantaneous change of the signal field propagating in a thick resonant absorber wh…
A statistical mechanics view on Kitaev's proposal for quantum memories
R. Alicki, M. Fannes, M. Horodecki
We compute rigorously the ground and equilibrium states for Kitaev's model in 2D, both the finite and infinite version, using an analogy with the 1D Ising ferromagnet. Next, we inv…