Rotational excitations of compact Q-balls in the complex signum-Gordon model in 2+1 dimensions are investigated. We find that almost all such spinning Q-balls have the form of a ring of strictly finite width. In the limit of large angular momentum Mz their energy is proportional to |Mz|. PACS: 11.27.+d, 98.80.Cq, 11.10.Lm Reymonta 4, 30-059 Cracow, Poland Podchora̧żych 2, 30-084 Cracow, Poland

Erik Bollt, Pawe l Góra, Andrzej Ostruszka, and Karol Życzkowski Department of Mathematics & Computer Science and Department of Physics, Clarkson University, Potsdam, NY 13699-5805 Department of Mathematics and Statistics, Concordia University 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30–059 Kraków, Poland Center...

Joseph Emerson,1 Robert Alicki,2 and Karol Życzkowski1, 3, 4 Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada Institute of Theoretical Physics and Astrophysics, University of Gdańsk, Wita Stwosza 57, PL 80-952 Gdańsk, Poland Institute of Physics, Jagiellonian University, ul. Reymonta 4, 31-059 Cracow, Poland Center for Thoretical Physics, Polish Academy of Sciences, Al Lot...

P. Korecki,1,* M. Tolkiehn,2,3 D. V. Novikov,2 G. Materlik,4 and M. Szymonski1 1M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland 2Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22603 Hamburg, Germany 3Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA 4Diamond...

Simplicial quantum gravity has been proposed as a regularization for four dimensional quantum gravity. The partition function is constructed by performing a weighted sum over all triangulations of the 4-sphere. The model is well-defined only if the number of such triangulations consisting of N simplexes is exponentially bounded. Numerical simulations seem so far to favor such a bound. Permanent...

The continuous cell line K-562, derived from a patient with CML in blast crisis, was examined for markers of granulopoietic (My-1) and erythropoietic (spectrin) differentiation, using specific antibodies detected by indirect immunofluorescence. Both markers were seen, and in 10%--30% of cells, both were present in the same cells. In contrast, the continuous leukemic line HL-60 and KGI contained...

Steady-State Statistical SputteringModel for Extracting Depth Profiles from Molecular Dynamics Simulations of Dynamic SIMS Robert J. Paruch, Zbigniew Postawa, Andreas Wucher, and Barbara J. Garrison* Smoluchowski Institute of Physics, Jagiellonian University, Ulica Reymonta 4, 30-059 Krak ow, Poland Faculty of Physics, University of Duisburg-Essen, 47048 Duisburg, Germany Department of Chemistr...

1 Systems Neurobiology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 2 Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, CA 3 Department of Physics and Astronomy, University of Glasgow, Glasgow, UK 4 Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, 23 30-059, Krakow, Poland 5 Department of Statistics and ...

1Department of Medical Physics and Biophysics, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Reymonta 19, 30-059 Krakow, Poland 2Department of Biophysics, Faculty of Science, Centre of the Region Haná for Biotechnological and Agricultural Research, Šlechtitelů 27, Palacký University, 78371 Olomouc, Czech Republic 3Department of Plant Physiology and B...

Permanent address: Institute of Physics, Jagellonian University, ul. Reymonta 4, 30-059 Kraków, Poland Laboratoire associé au CNRS. whether this finding does not reflect a deficiency of the simulation set-up. As it is an important question, we have decided to check it in more detail. The result of this investigation is presented in sect. 2 of this communication. In sect. 3 we also present some ...