3.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GdańskPL161 papers
- National Quantum Information Centre in GdanskPL99 papers
- Princeton UniversityUS44 papers
- Polish Academy of SciencesPL40 papers
- Jagiellonian UniversityPL34 papers
- Los Alamos National LaboratoryUS25 papers
- AGH University of KrakowPL20 papers
- Adam Mickiewicz University in PoznańPL19 papers
- Center for Theoretical PhysicsPL19 papers
- Vrije Universiteit BrusselBE19 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- RWTH Aachen UniversityDE17 papers
9 papers · 2 filters
Quantum cryptography with polarizing interferometers
Marek Czachor
Cryptographic scheme proposed by Bennett, Brassard, and Mermin [Phys. Rev. Lett. {\bf 68}, 557 (1992)] is reformulated in a version involving two polarizing Mach-Zehnder interferom…
Einstein-Podolsky-Rosen paradox without entanglement
Ryszard Horodecki, Michal Horodecki, Pawel Horodecki
We claim that the nonlocality without entanglement revealed quite recently by Bennett {\it et al.} [quant-ph/9804053] should be rather interpreted as {\it Einstein-Podolsky-Rosen p…
Nonlinear von Neumann-type equations: Darboux invariance and spectra
Maciej Kuna, Marek Czachor, Sergiej B. Leble
Generalized Euler-Arnold-von Neumann density matrix equations can be solved by a binary Darboux transformation given here in a new form: where $…
Microscopic Foundation of Nonextensive Statistics
Marek Czachor, Jan Naudts
Combination of the Liouville equation with the q-averaged energy leads to a microscopic framework for nonextensive q-thermodynamics. The resulting von Neumann equatio…
Bound entanglement can be activated
Pawel Horodecki, Michal Horodecki, Ryszard Horodecki
Bound entanglement is the noisy entanglement which cannot be distilled to a singlet form. Thus it cannot be used alone for quantum communication purposes. Here we show that, nevert…
Entanglement and pseudomixtures
Maciej Kuna
In a recent paper Sanpera et al. have shown, that for the simplest binary composite systems any density matrix can be described in terms of only product vectors. The purpose of thi…
Universal Quantum Information Compression
Richard Jozsa, Michal Horodecki, Pawel Horodecki +1
Suppose that a quantum source is known to have von Neumann entropy less than or equal to S but is otherwise completely unspecified. We describe a method of universal quantum data c…
Darboux-integrable nonlinear Liouville-von Neumann equation
Sergei B. Leble, Marek Czachor
A new form of a binary Darboux transformation is used to generate analytical solutions of a nonlinear Liouville-von Neumann equation. General theory is illustrated by explicit exam…
Mixed-state entanglement and distillation: is there a ``bound'' entanglement in nature?
Michal Horodecki, Pawel Horodecki, Ryszard Horodecki
It is shown that if a mixed state can be distilled to the singlet form, it must violate partial transposition criterion [A. Peres, Phys. Rev. Lett. 76, 1413 (1996)]. It implies tha…