325 citations
- Eötvös Loránd UniversityHU19 papers
- Columbia UniversityUS15 papers
- Hungarian Academy of SciencesHU14 papers
- Centre National de la Recherche ScientifiqueFR13 papers
- Joint Institute for Nuclear ResearchRU12 papers
- Kurchatov InstituteRU12 papers
- Stony Brook UniversityUS12 papers
- The University of TokyoJP12 papers
- University of California, RiversideUS12 papers
- Weizmann Institute of ScienceIL12 papers
- Los Alamos National LaboratoryUS11 papers
- University of DebrecenHU11 papers
6 papers · 1 filter
Finitary Galois extensions over noncommutative bases
I. Balint, K. Szlachanyi
We study Galois extensions Coinv(M)<M for M an H-comodule algebra and H a Frobenius Hopf algebroid. We obtain generalizations of various theorems in Hopf-Galois theory by Kreimer-T…
Entanglement in the XX spin chain with an energy current
V. Eisler, Z. Zimboras
We consider the ground state of the XX chain that is constrained to carry a current of energy. The von Neumann entropy of a block of neighboring spins, describing entanglement…
Capture of slow antiprotons by helium atoms
J. Revai, N. V. Shevchenko
A consistent quantum mechanical calculation of partial cross-sections leading to different final states of antiprotonic helium atom was performed. For the four-body scattering wave…
Three-party pure quantum states are determined by two two-party reduced states
Lajos Diosi
We can uniquely calculate almost all entangled state vectors of tripartite systems ABC if we know the reduced states of any two bipartite subsystems, e.g., of AB and of BC. We cons…
The double algebraic view of finite quantum groupoids
Kornel Szlachanyi
This is an introduction to double algebras which is the structure modelled by the properties of the convolution product in Hopf algebras, weak Hopf algebras and in Hopf algebroids.…
perturbations of FRW models with a cosmological constant
Zoltán Perjés, Mátyás Vasúth, Viktor Czinner +1
Spatially homogeneous and isotropic cosmological models, with a perfect fluid matter source and non-vanishing cosmological constant, are studied. The equations governing linear per…