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55 papers · 1 filter
Cold Trapped Ions as Quantum Information Processors
Marek Sasura, Vladimir Buzek
In this tutorial we review physical implementation of quantum computing using a system of cold trapped ions. We discuss systematically all the aspects for making the implementation…
Purification and correlated measurements of bipartite mixed states
Jan Bouda, Vladimir Buzek
We prove that all purifications of a non-factorable state (i.e., the state which cannot be expressed in a form ) are entangled. We also show that for any bipa…
Balanced d-lattices are complemented
Martin Goldstern, Miroslav Ploscica
We show that all balanced d-lattices must be complemented, answering a question of Chajda and Eigenthaler. (A bounded lattice is balanced if any two congruences agree on their 1-cl…
3D-2D crossover in the naturally layered superconductor (LaSe)1.14(NbSe2)
P. Samuely, P. Szabo, J. Kacmarcik +4
The temperature and angular dependencies of the resistive upper critical magnetic field reveal a dimensional crossover of the superconducting state in the highly anisotrop…
A Purity Monitoring System for the H1 Liquid Argon Calorimeter
H1 Calorimeter Group, E. Barrelet
The ionization probes used for monitoring the liquid argon purity in the H1 calorimeter are described and results of their operation in tests at CERN and during the period 1992 to…
Search for Excited Neutrinos at HERA
H1 Collaboration, C. Adloff
We present a search for excited neutrinos using e^-p data taken by the H1 experiment at HERA at a center-of-mass energy of 318 GeV with an integrated luminosity of 15 pb-1. No evid…