From the 1 of 6k papers with an AI index.
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47 papers · 1 filter
Identification of selected sources from the ROSAT Galactic Plane Survey - I
C. Motch, P. Guillout, F. Haberl +6
We report on optical searches in the error circles of 93 ROSAT survey sources located at low galactic latitudes (|b| < 20 deg). These sources were extracted from the ROSAT Galactic…
K0-Sigma+ Photoproduction with SAPHIR
C. Bennhold
Preliminary results of the analysis of the reaction p(gamma,K0)Sigma+ are presented. We show the first measurement of the differential cross section and much improved data for the…
Upper critical field pecularities of superconducting YNi2B2C and LuNi2B2C
S. V. Shulga, S. -L. Drechsler, G. Fuchs +4
We present new upper critical field Hc2(T) data in a broad temperature region from 0.3K to Tc for LuNi2B2C and YNi2B2C single crystals with well characterized low impurity scatteri…
The Potts Model with a Reflecting Boundary
Reinhard Häring-Oldenburg
A Potts model with a reflecting boundary is introduced and it is shown that its partition function can be expressed as a Markov trace on the Temperley-Lieb Algebra of Coxeter type…
Scattering and Absorption in Soft X-ray Selected AGN: An Optical Polarization Survey
D. Grupe, B. J. Wills, D. Wills +1
We have surveyed the optical linear polarization of a completely identified sample of 43 bright soft-X-ray-selected ROSAT AGN. Most (40) of these AGN show low polarization (<1%), a…
Efficient Diagonalization of Kicked Quantum Systems
R. Ketzmerick, K. Kruse, T. Geisel
We show that the time evolution operator of kicked quantum systems, although a full matrix of size NxN, can be diagonalized with the help of a new method based on a suitable combin…