NORDITA   NEWS   1997 / 1                       February 1, 1997



NORDITA BALTIC/NW RUSSIA FELLOWSHIPS 1997
Nordita has obtained funding from the Nordic Council of Ministers for fellowships intended for young researchers from the Baltic countries (Estonia, Latvia, Lithuania) and NW Russia (the Barents Sea region, and the Kaliningrad, St. Petersburg and Petrosavodsk areas) in 1997. The fellowships are intended for research in theoretical physics at the postdoctoral or advanced graduate student level at Nordita.

Physicists with some research experience in one of the fields represented at Nordita (astrophysics, complex systems, condensed matter physics, nuclear physics and particle physics) will have priority.

Information about Nordita is available through WWW at http://www.nordita.dk/ and by e-mail from nordita@nordita.dk. The deadline for receipt of applications (by e-mail followed by a hard copy) is 9 February, 1997.


NONEQUILIBRIUM STATISTICAL MECHANICS
Lectures by Hans Fogedby and John Hertz, Spring Semester 1997, Thursdays, 9-11, Auditorium C, Niels Bohr Institute

These lectures will extend last year's course to a number of problems of fundamental interest in nonequilibrium statistical physics, notably growing interfaces and glasses. They are aimed at advanced undergraduates and graduate students specializing in condensed matter or statistical physics, as well as (possibly more senior) people in other fields who would like to get a general introduction to this field.

Provisional Outline and Schedule:

Random walks in random environments (6 February) Growing interfaces (20 February and 6 March) Supersymmetric field theory for stochastic systems (20 March) Dynamics of spin glasses and glasses (3, 10, and 17 April)


VISITING PROFESSORS E. GUDMUNDSSON AND O. VILHU
We welcome Einar Gudmundsson, Professor of Astrophysics at the University of Iceland in Reykjavik, and O. Vilhu, Prof. of Astrophysics at the University of Helsinki, as visiting professors at Nordita during A. Kashlinsky's leave of absence.

Einar Gudmundsson did his early university studies at the Univ. of Iceland, Princeton University and the University of Wisconsin. From 1978-81 he was a Nordita fellow and in 1981 he received his Ph.D. degree in astrophysics from the University of Copenhagen for work on the physical properties of neutron star envelopes. Since then, he has continued to work on this and related topics, most recently on the Thomas-Fermi equation of state of hot matter in strong magnetic fields. He has also worked in the field of classical cosmology where he is presently investigating, together with Gunnlaugur Bjoernsson, the long term future evolution of closed universes. His future plans in the field of cosmology include observational work with the Nordic Optical Telescope.

Since his thesis work he has spent some time doing research both at Nordita and the University of Illinois at Urbana-Champaign, but most of the time he has been working at the University of Iceland in Reykjavik. In addition to research and teaching his main efforts there have been directed towards the development of astronomy and astrophysics in Iceland, and his main hobby is the investigation of the history of astronomy in Iceland. Einar Gudmundsson wil stay at Nordita from 1 January till 1 July 1997.

During the period 1 July - 31 December 1997 Osmi Vilhu, Professor of Astrophysics at the Univ. of Helsinki, will be a visiting professor at Nordita. He is an astrophysicist doing both theory and observations, mostly in the field of stellar astrophysics. He is not committed to any particular wavelength band although he finds that X- and Gamma-rays are becoming more and more attractive. He belongs to the Spectrum-XG and Integral teams and is a member of the Astronomy Working Group of ESA.

During his stay at Nordita, he plans to review astrophysical radiation models of binary component neutron stars and black hole candidates, and apply these to real observed systems. He will participate in the Nordic Graduate Program in Physics (see enclosed information), and is a co-organizer of the Nordic Conference in Theoretical High Energy Astrophysics (see below). Osmi would appreciate receiving ideas about how to further develop contacts between Nordic astronomy and Nordita (vilhu@gstar.helsinki.fi).


BOARD MEETINGS
Nordita's Board will meet on the following dates in 1997: 10 - 11 March (Copenhagen), 13 -14 June (Jyvaeskylae), and 3-5 November (Copenhagen).


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Items for Nordita News
If you have any information about meetings, etc. that would be useful to include in Nordita News, please send it to Nordita, att.: Jette Nielsen, Blegdamsvej 17, DK-2100 Copenhagen OE, Denmark or by e-mail: nielsen@nordita.dk. Nordita News appears on the first day of even numbered months, and material should be sent at least 3 weeks before the publication date.

 

COURSES / CONFERENCES / WORKSHOPS

This list only includes new items. For a more complete list of conferences etc., please see the calender on the last page.

Hadrons in Matter
Nordita, during the week 7-12 April 1997
During the week 7-12 April we are expecting Nordita's adjunct professor, Wolfram Weise from the Technical Univeristy of Munich to be in residence. In connection with his visit it is planned to hold an informal meeting on aspects of the physics of hadrons in a medium, including applications to heavy-ion and other experiments as well as astrophysics. If you would like to receive further details, contact Chris Pethick (pethick@nordita.dk).

Beyond the Standard model V
Kvikne's Hotel, Balholm Norway, April 29 - May 4, 1997
We cordially invite you to the 5th International conference on physics Beyond the Standard Model. Topics we hope to cover will include: Neutrino masses and mixing, Dark Matter; Future Colliders - Tevatron Upgrades, LHC, NLC (including $\gamma \gamma, e\gamma$ and $e^{-}e^{-}$ options), $ \mu \mu $ collider; New Developments in QCD; Electroweak Symmetry Breaking - Strongly-Coupled $WW$ Sector, Dynamical Symmetry Breaking; Origins of Flavor Physics, Fermion Mass Patterns, etc.; Supersymmetry, Model Building, Superstring and Supergravity Boundary Conditions and constraints; Heavy Quark Physics, $b$-Factory Physics, CP Violation, New Physics through the $t$ Quark, Anomalous Couplings; Applications of Effective Lagrangians, Anomalous Gauge Couplings; Sphalerons, Renormalons; Exotic Particles - new $W, Z's,$ etc.; Cosmology, Baryogenesis, etc.; Black holes, quantum gravity, cosmological constant. Questions regarding the conference may be addressed to BSMV Secretary, Department of Physics, Univ. of Bergen, Allegt. 55, N-5007 Bergen, or e-mail: Per.Osland@fi.uib.no or Gerald.Eigen@fi.uib.no.

Microscopic Many-Body Methods
Workshop at the ECT*, the European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Trento, Italy, 26 May-6 June 1997

Morten Hjorth-Jensen, a Nordita fellow, is organizing this workshop, the purpose of which is to discuss microscopic many-body approaches to fermionic and bosonic systems in nuclear, atomic and condensed matter physics. Examples are variational Monte-Carlo and Green's function Monte Carlo methods, Fermi hypernetted chain, techniques, self-consistent Green's function theory, parquet theory, Brueckner theory and the exponential ansatz. We hope to be able to present ``homework'' problems which can be discussed within the framework of some of the above methods. This may shed more light on the pros and cons of the different approaches, and may also point to future cases for study. Especially, we wish to focus on the following applications (with the main emphasis on nuclear physics): Effective interactions and operators for valence systems in intermediate and heavy nuclei; Large-scale shell-model methods for intermediate and heavy nuclei; Effective interactions and operators in nuclear and neutron matter, especially of relevance for neutron star studies; Ground state properties of finite nuclei; Quantum liquids (helium); Bose-Einstein condensation in confined systems. Organizers: M. Hjorth-Jensen (coordinator), NORDITA, Denmark, (mjensen@nordita.dk); E.\ Lipparini and S.\ Stringari, Dept. of Physics, Univ. Trento, Italy, (lipparini@science.unitn.it and stringar@science.unitn.it); H.\ M\"{u}ther, Dept. of Theor. Physics, Univ. of T\"{u}bingen, Germany, (herbert.muether@tuebingen.de); V.R. Pandharipande, Dept. of Physics, Univ. of Illinois, Urbana, USA, (vijay@rsm1.physics.uiuc.edu).

Workshop on Exclusive Processes in QCD
11-13 September, 1997 at Nordita, Copenhagen
The workshop will focus on the recent (and related) developments in hard diffractive meson ($\rho$, $J/\psi$) production, off-forward parton distributions, and virtual Compton scattering. There will be talks also on exclusive form factors, hadron wave functions, semi-inclusive reactions at large $z$, quarkonium production, non-relativistic QCD, exclusive b decays, hard processes in nuclei, and exclusive QCD on the lattice.

The workshop is arranged in the framework of the European Network on `Hadronic Physics with High Energy Electromagnetic Probes'. Some support for local expenses will be available to participants who are not part the network. The organizers are: V. Braun, (vbraun@nordita.dk), P. Hoyer, (hoyer@nordita.dk), S. Peigne, (peigne@nordita.dk).

Nordic Symposium in Theoretical High Energy Astrophysics: "Exploiting Spectrum-X-Gamma and Integral",
September 14 - 16, 1997 at the Danish Space Research Institute

In 1998 the Russian Space Agency will launch the Spectrum-X-Gamma satellite and in 2001 the European Space Agency will launch INTEGRAL. Together these two missions will allow observations of cosmic sources all the way from the visible to the gamma-ray domain. Nordic institutions are contributing significantly to both missions, and Nordic observers will get unprecedented possibilities for observations. The main theme of this symposium organized by the Danish Space Research Institute and Nordita is how we shall prepare for this opportunity.

The aim of the talks and the discussions will be to define where Spectrum X-Gamma and INTEGRAL can contribute, what are the most burning issues, and what observations will be the most fruitful. In addition, the invited talks will give a good overview of the present observational and theoretical status of several fields in high energy astrophysics.

TOPICS: The Spectrum X-Gamma and INTEGRAL instruments; extragalactic astrophysics including active galactic nuclei and the cosmic X-ray background; galactic black hole candidates and neutron stars; optically thin plasmas and clusters of galaxies; supernova remnants and stellar coronae.

INVITED SPEAKERS: B. Aschenbach, N. Brosch, A. Fabian, M. Gilfanov, A. Gimenez, E. van den Heuvel, J. Linsky, N. Lund, R. Mewe, R. Mushotzky, W. Priedhorsky, H. Schnopper, R. Sunyaev, P. Ubertini, G. Vedrenne, A. Wells, A. Zdziarski, and A. Zehnder.

A Web page has been setup: http://www.dsri.dk/workshops/nordsym with a registration and abstract submission form. The deadline is: June 1, 1997. Principal Organisers: Herbert W. Schnopper, CfA, (Chairperson of SOC), Osmi Vilhu, Helsinki Observatory, (Co-chairperson of SOC), and Niels J. Westergaard, DSRI, (Chairperson of LOC). Scientific Organizing Committee (SOC) and Nordic Contact Scientists: Denmark: Herbert Schnopper (Chairperson), CfA (hws@dsri.dk), Chris Pethick, Copenhagen, (pethick@nordita.dk), Niels Westergaard, Copenhagen, (njw@dsri.dk). Finland: Osmi Vilhu (Co-Chairperson), Helsinki, (vilhu@gstar.helsinki.fi). Iceland: Gunnlaugur Bjoernsson, Reykjavik, (gulli@raunvis.hi.is). Norway: Oddbjorn Engvold, Oslo, (oddbjorn.engvold@astro.uio.no). Sweden: Roland Svensson, Stockholm, (svensson@astro.su.se). Russia: Rashid Sunyaev, Moscow, Institute for Space Studies, (rs@kisa.iki.rssi.ru).

 

VISITORS AT NORDITA / NBI / CATS / TAC

J. Pelt, (Tartu Obs.), A, present - 4.2.97, NORDITA
V. Rubakov, P, present - 6.2.97, NBI
I. Khriplovich, (Novosibirsk), A, present - 9.2.97, TAC
V. Dmitriev, N, present - 10.2.97, NBI
P. Naselsky, (Rostov), A, present - 13.2.97, TAC
L. Bravina, (Bergen), N, present - 14.2.97, NBI
P. Silvestrov, (Novosibirsk), P, present - 28.2.97, NBI
D. Kirilova, (Sofia), A, present - 6.4.97, TAC
V. Antonuccio, (Catania), A, present - 31.12.97, TAC
H. Fogedby, (Aarhus), S, several visits spring, NORDITA
A. Kleppe, (Stockholm), 1 day in February, NORDITA
V. Vereshagin, (St. Petersburg), 1 week February, NORDITA
D. Kompaneets, (Moscow), A, 2 weeks February, TAC
N.N. Nikolaev, (KFA Juelich and Landau Institute) 5.2 - 9.2.97, NORDITA
A. Khokhlov, (Washington), A, 10.2 - 23.2.97, TAC
A. Beloborodov, (Moscow), A, 15.2 - 15.5.97, TAC
A. Slavnov, P, 20.2 - 20.3.97, NBI
D. Weingarten, P, 24.2 - 27.2.97, NBI
I.A. Batalin, (Moscow), P, 1.3 - 31.3.97, NBI
H. Suzuki, (Hokkaodo), P, 3.3 - 31.3.97, NBI
B. Huberman, (California), C, 9.6 - 20.6.97, NORDITA
H. Burkal Jensen, N, 15.6 - 31.8.97, NBI

The fields are listed after the names as: A (Astrophysics), C (Complex Systems & Chaos), N (Nuclear Physics), P (Particle Physics), and S (Condensed Matter Physics).
If you are interested in having any of these people visit your institute, please contact NORDITA.

LONG-TERM VISITORS AT NORDITA

P. Godzinsky, (Barcelona), N, present - 31.12.97
P. Talavera, (Spain), N, present - 28.2.97
L. Portinari, (Padova), A, present - 1.5.97
F. De Blasio, present - end June
L. Magnea, (Torino), P, present - 1.8.97

 

PREPRINTS / REPRINTS

New reprints and preprints obtainable from Jette Nielsen, e-mail: nielsen@nordita.dk.

A. Kashlinsky and R. Jimenez: High-$z$ objects and cold-dark-matter cosmogonies: the case of 53W091 and A. Kashlinsky, J.C. Mather, and S. Odenwald: Clustering in COBE/DIRBE maps and the cosmic infrared background. 96/72.

A.O. Jaunsen and J. Hjorth: Detection of a spiral lens galaxy and optical variability in the gravitational lens system B1600+434. 96/75.

P. Hoyer: Physics opportunities at ELFE. 96/76.

E. Lundh, C.J. Pethick, and H. Smith: Zero-temperature properties of a trapped Bose-condensed gas: Beyond the Thomas-Fermi approximation. 96/77.

P. Ernstroem, L. Loennblad, and M. Vaenttinen: Evolution effects in $Z^{0}$ fragmentation into charmonium. 96/78.

C.J. Pethick and A.Y. Potekhin: Liquid crystals in the mantles of neutron stars. 96/80.

P. Ball and V.M. Braun: Use and misuse of QCD sum rules in heavy-to-light transitions: the decay $B \rightarrow \rho e \nu$ re-examined. 96/81.

N. Sandulescu, J. Blomqvist, T. Engeland, M. Hjorth-Jensen, A. Holt, R.J. Liotta, E. Osnes: Generalized seniority scheme in light Sn isotopes. 96/82.

A. Holt, T. Engeland, E. Osnes, M. Hjorth-Jensen, and J. Suhonen: Extended shell model calculation for even $N = 82$ isotones with a realistic effective interaction. 96/83.

B.E.J. Pagel and G. Tautvai\u{s}ien\.{e}: Galactic chemical evolution of primary elements in the solar neighbourhood II: Elements affected by the s-process. 97/1.

L. Jetsu: The ``human'' statistics of terrestrial impact cratering rate. 97/2.

G. Lazzari, F.V. De Blazio, M. Hjorth-jensen, OE. Elgaroey, and L. Engvik: Coherence length of neutron superfluids. 97/3.

M. Elk: Numerical studies of the mesomaser. Phys. Rev. A54 (1996) 4351.

P. Di Vecchia, L. Magnea, A. Lerda, R. Marotta, R. Russo: Two-loop scalar diagrams from string theory. Phys. Letts. B388 (1996) 65.

J. Bijnens and E. Pallante: Weak long distance contributions to the neutron and proton electric dipole moments. Phys. Lett. B387 (1996) 207.

A.I. Davydychev, P. Osland, O.V. Tarasov: Three-gluon vertex in arbitrary gauge and dimension. Phys. Rev. D54 (1996) 4087.

 

OVERVIEW OF FUTURE NORDITA AND OTHER CONFERENCES

Title / Date / Place Contact Person Fax / Email / www
Physics of Structurally
Disordered Materials.
Jyväskylä, Finland.
14 - 16 February 1997.
Marja Korhonen
Dept. of Physics,
Univ. of Jyväskylä
+358-14 602 201 (fax)
korhonen@jyfl.jyu.fi
Dynamical Properties of
Unconventional Magnetic Systems.
Geilo, Norway.
2-12 April 1997.
Mary Byberg
Inst. for Energy Tech.
N-2007 Kjeller
Norway
+47-63 81 09 20 (fax)
fysikk@ife.no
Nordita Master Class in Physics.
Nordita, Copenhagen.
26 July - 2 August 1997.
S. Åberg sven.aberg@matfys.lth.se
www.matfys.lth.se/~sven/
masterclass97.html
Fourth Nordic Summer School
in Nuclear Physics.
Falsterbo, Sweden.
11-22 August 1997.
S. Åberg sven.aberg@matfys.lth.se
www.matfys.lth.se/~sven/
falsterbo97.html
Nordic Graduate Program in Physics.
Nordita/NBI/TAC, Copenhagen.
18-29 August 1997.
H. Heiselberg
Nordita
+45-31 38 91 57 (fax)
hh@nordita.dk
www.nordita.dk/~nordgrad/

 


NORDITA                           Tel: Main number +45-35 32 55 00
Blegdamsvej 17                    For individual extensions dial:
DK-2100  Copenhagen OE            +45-353+the five-digit ext. number
Denmark                           Fax:  +45-31 38 91 57
                                  Electronic mail:  nordita@nordita.dk
                                  www: http://www.nordita.dk/


 

Nordic Graduate Program in Physics
18 - 29 August 1997, Nordita/NBI/TAC, Copenhagen
A two-week program for graduate students in the Nordic and Baltic region. The aim of the program is to present a broad range of physics research in the Copenhagen area, and to form personal contacts between students and the local faculty.

Introductory lectures will give a cross-disciplinary view of current physics research in key areas of theoretical and experimental physics.

Study groups will be formed in astrophysics, chaos/biophysics, condensed matter physics and high energy/nuclear physics. Students participate in a group of their choice and discuss research projects with local physicists. A personal supervisor assigned to each student provides individual guidance.

Excursions will be arranged to experimental facilities at the Danish Technical University, the University of Lund, the Risoe Research Center and (optionally) to DESY, the particle physics accelerator center in Hamburg. A session on Physics in Industry will address the particular opportunities and requirements posed by careers outside academia.

Physicists organizing the program:
Astrophysics: J.-S. Larsen (TAC)
Condensed Matter: D. Khveshchenko (Nordita)
Chaos/Biophysics: T. Bohr (NBI)
High Energy/Nuclear: P. Hoyer (Nordita), L. McLerran (Minnesota and Nordita), H. Heiselberg (Nordita)

Graduate student participants:
To facilitate individual guidance the number of participants will be limited to 25 graduate students, evenly distributed over subfields and over the Nordic and Baltic countries. The selection will be based on teacher recommendations, with priority given to students in the first and second years of their PhD studies.

It is expected that local costs (housing, meals and excursions) can be partially covered by support from Nordita and NorFA. Nordic students should arrange for travel and supplementary funding from other sources. Students from the Baltic countries will be reimbursed in full.

The deadline for applications is 1 May 1997. Further information about the program and an application form can be found at http://www.nordita.dk/~nordgrad/ This home page will be updated continuously.

Director of the program: Henning Heiselberg, Nordita, < hh@nordita.dk >
E-mail for further information: nordgrad@nordita.dk

This graduate program is arranged by the Nordic Institute for Theoretical Physics (Nordita) in collaboration with the Niels Bohr Institute (NBI), the Theoretical Astrophysics Center (TAC), and other institutes in the Copenhagen area. The program is sponsored by Nordita and Nordisk Forskerutdanningsakademi (NorFA).

 

Workshop on: Cosmic Microwave Background
29 - 31 May 1997, at TAC, Copenhagen
The Theoretical Astrophysics Center (TAC) is planning a 2 1/2 day international workshop devoted to theory, measurement, data reduction, and interpretation issues of the cosmic microwave backround anisotropy. The major motivation is to bring together about 40 researchers from Europe and the USA to foster collaborations and interest in future PLANCK (previously COBRAS/SAMBA) satellite missions of the European Space Agency. The workshop is organized by K. Gorski (TAC, gorski@tac.dk), sponsored by TAC, and co-sponsored by Nordita.
Deadline for applications: March 25, 1997. More information available directly from K. Gorski or Anette Uhl (uhl@tac.dk, the workshop secretary).