NORDITA   NEWS   1999/1                       February 1, 1999

Nordita Seminars 1999, Thursdays 10:00 - 12:00, Aud. M

Nordita announces another series of "Nordita Seminars" this spring. The forthcoming lecturers are: February 18: O. Syljuåsen "The 2D Metal-Insulator Transition"; February 25: G. Zvejnieks: "Monte Carlo Modelling of the forced A+B → 2B Autocatalytical Reaction". The future program will be announced at website:   http://www.nordita.dk/Adm/Meetings/norditaseminars.html

Nordic Projects and orresponding Fellows 1999

At its meeting on 4 December 1998, Norditas board decided to support the following new Nordic Projects: "Semiclassical Methods in Quantum Field Theory", organizer Prof. D. Diakonov; "The Physics of Very Cold Atomic Systems", organizer Prof. C. Pethick; "Hot Non-perturbative Particle Physics", organizer assistant professor K. Rummukainen; and "Statistical Mechanics of Non-equilibrium Systems", organizer assistant professor K. Sneppen; In addition, R. Svensson, Stockholm was awarded a corresponding fellowship for 12 months in 1999/2000, and A. Hansens fellowship was extended for another year.

Roland Svennson New Corresponding Fellow at Nordita.

As mentioned above, at its meeting on December 4, Nordita's Board appointed Roland Svensson, Professor at the Stockholm Observatory, to a Corresponding Fellowship. After undergraduate studies at the University of Lund, Roland Svensson obtained his Ph. D. from the University of California at Santa Cruz in 1981. Following this he was a postdoctoral fellow at ESO, and a fellow and later assistant professor at Nordita before being appointed to his present position in Stockholm in 1990. His research interests are in the area of high energy astrophysics, in particular X/gamma ray astrophysics. They mainly concern high energy processes near compact relativistic objects, such as black holes and neutron stars. The corresponding observational phenomena include active galactic nuclei, X-ray binaries, and gamma ray bursts. The research is both theoretical and observational. Observations are performed with satellites such as the Japanese ASCA, the US Compton Gamma Ray Observatory (CGRO), and the US Rossi X-ray Timing Explorer (RXTE). Future satellite involvements include the European International Gamma-Ray Astrophysics Laboratory (INTEGRAL, launch 2002) and the Gamma-Ray Large Area Space Telescope (GLAST, launch 2005).

Year 1999 is the second year of activity for the 3-year Nordic project "Hot non-perturbative particle physics" http://www. nordita.dk/~kari/hnppp/ This project is dedicated to the study of the Standard Model of particle physics (and its extensions) at high temperatures and energy densities conditions which can be found during the first fractions of a second after the Big Bang, inside the neutron stars, and some aspects of which will be probed on earth in the heavy-ion collision laboratories.

During 1998, the project organized an informal workshop (April 24-25, Copenhagen), participated in the organization of the international conference Strong and Electroweak Matter 98 (December 2-5, Copenhagen), and supported several visits by project members to various nodes of the network. In January 2-8, 1999, the project organized a PhD-school "Nordic Winter School on Particle Physics and Cosmology" (Gausdal, Norway), in collaboration with the NorFA project "Standard Model in Extreme Environments".

For several years, the Nordic high-energy physics community has been very active in researching the physics of the matter at ultrahigh temperatures and densities. This project brings together ~20 physicists from Copenhagen, Helsinki, Stockholm, Gothenburg, Trondheim and CERN. The research interests include: cosmological baryon number violation and baryogenesis, magnetic fields in the early universe, thermodynamics and phase transitions in the Standard Model, and the physics of supersymmetric theories at high temperature. Since these are often dominated by non-perturbative processes, a large part of the planned research is done with numerical lattice Monte Carlo methods.

For more information, we refer to the project home page http://www.nordita.dk/~kari/ hnppp/. You are also welcome to contact the project coordinator, Kari Rummukainen at Nordita (e-mail: kari@nordita.dk)

PANIC 99 XVth Particles and Nuclei International Conference
Uppsala, Sweden, 10 - 16 June 1999
Topics:   QCD dynamics of hadronic and nuclear systems; Nucleosynthesis and big bang cosmology; Nuclear and particle astrophysics; Nucleon and nuclear structure; Standard model and beyond; Antiprotons and antimatter; Fundamental symmetries; Physics at storage rings; Diffractive phenomena; Hot and dense matter; Novel techniques; Applications. Organizing committee: S. Kullander (Chairman), I. Ericson, T. Ericson, G. Fäldt, B. Höistad, G. Ingelman, T. Johansson, O. Jonsson, B. Karlsson, L. Nilsson, O. Sundberg, and G. Tibell. For further information, please contact: panic99@tsl.uu.se, fax: +46-18 471 38 33, phone: +46-18 471 38 48, or website: www.tsl.uu.se/panic99

Small Galaxy Groups, IAU Colloquium No. 174
Turku, Finland, June 13-18, 1999
Topics:   Triple systems of galaxies: theory and observations; Small groups of galaxies; The Local Group of Galaxies; Interactions and mergers in triplets; Free-fall triplets and cosmological structure formation; The extended local group; Evolution from triplets to binaries; The role of triplets in cluster dynamics; Triplets at high redshift; Dark matter in small groups. Further information: University of Turku - Congress Office, Lemminkäisenkatu 14-18B, FIN-20520 Turku, Finland, phone: +358 2 333 63 42, fax: +358 2 333 6410, email: cescon@tkk.utu.fi, website: http:// www.tkk.utu.fi/cescon/. Local contact address: Mauri Valtonen, Chris Flynn, Tuorla Observatory, FIN-21500 Piikkio, Finland, phone: 358-2-2744245, fax: +358-2-2433767, e-mail: sgg@astro.utu.fi, website: http://www.astro.utu.fi/sgg/

International Europhysics Conference on High Energy Physics
Tampere Hall, Tampere, Finland, July 15-21, 1999
Topics:   Hard Scattering in High Energy QCD; Photon Structure; Hadronic Structure, Low-x Physics and Diffraction; CP violation; Flavour Physics; Tests of the Standard Model; Searches for New Particles; Beyond the Standard Model; Neutrino Masses and Oscillations; Lattice Gauge Theory; Cosmology; Particle Astrophysics; Theoretical developments in strings and branes; High energy nuclear collisions; Detector developments for future accelerators; New ideas on data handling; Future colliders beyond LHC/FNAL; Applications of particle physics technology. Participation by invitation only. For invitations please consult the coordinator of your country or laboratory. The list of coordinators as well as all other useful information can be found on the web site: http://www.physics.helsinki.fi/hep99. Contact address: EPS-HEP 99, Department of Physics, Box 9, FIN-00014 University of Helsinki, Finland, email: hep99@helsinki.fi. Local organizing committee: M. Roos (chair), M. Chaichian, P. Eerola, K. Enqvist, K.J. Eskola, K. Huitu, K. Kainulainen, K. Kajantie, A. Kupiainen, H. Kurki-Suonio, J. Maalampi, C. Montonen, R. Orava, J. Peltoniemi, M. Pessa, D.-O. Riska, H. Saarikko, M. Sainio, J. Tuominiemi, N. Törnqvist, I. Vilja, and K. Österberg. Supported by the Finnish Physical Society, Helsinki Institute of Physics, Department of Physics at the University of Helsinki, Tampere University of Technology, The Acedemy of Finland, and the Abdus Salam ICTP (Trieste).

Board Meetings

Items for Nordita News
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Visitors at NORDITA / NBI / CATS / TAC

The fields are listed after the names: AP, astrophysics; C, Complex Systems & Chaos; NP, nuclear physics; HE, high energy physics; CM, condensed matter physics.

If you are interested in having any of these people visit your institute, please contact NORDITA.

Postdocs and Long-term Visitors at NORDITA & NBI

Preprints / Reprints

D. Diakonov and K. Zarembo: Screening of fractional charges in (2+1)-dimensional QED. 98/63.

W. Bietenholz and H. Dilger: The Schwinger model with perfect staggered fermions. 98/67.

G.W. Carter and D. Diakonov: Light quarks in the instanton vacuum at finite baryon density. 98/68.

I.D. Luzyanin, A.G. Yashenkin, S.V. Maleyev, E.A. Zaitseva, and V.P. Khavronin: Longitudinal spin fluctuations in nearby isotropic ferromagnet CDCR₂SE₄: scaling behavior outside the critical region. 98/70.

A.P. Dmitriev, I.V. gornyi, and V. Yu Kachorovskii: Quantum conductivity corrections in Si-MOS structures in the regime of high electron concentrations. 98/71.

J.A. Hertz, D. Sherrington, and Th. M. Nieuwenhuizen: Competition between glasiness and order in a multi-spin glass. 98/72.

D.V. Khveshchenko: Phonon mediated transresistivity in a double layer composite fermion system. 98/73.

H. Fogedby: Canonical phase space approach to the noisy Burgers equation. 98/74.

A. Shelkan and D. Nevedrov: Self-consistent calculation of the autolocalization barrier for quasiparticles in anisotropic crystal. 98/75.

M. Hjorth-Jensen: Effective interactions for the nuclear shell model. 98/76.

L. Capiello, A. Liccardo, R. Pettorino, F. Pezella, and R. Marotta: Prescriptions for off-shell bosonic string amplitudes. 98/77.

N. Obers and B. Pioline: U-duality and M-theory, an algebraic approach. 98/78.

C. Michael and P. Pennanen: Two heavy-light mesons on a lattice. 98/79.