Issue 1, 2014

See photos from Nordita

NORDITA NEWSLETTER. 2007, ISSUE 4

Previous issueIssue 4, 2007Next issue

Bernard Pagel, Emeritus Professor of Astronomy, has died at the age of 77

One of astronomy's leading figures, Bernard Pagel was Professor at Nordita from 1989 until 1998. He moved to Copenhagen after compulsory retirement from the Royal Greenwich Observatory.

Following his retirement from Nordita he returned to the Astronomy Centre at the University of Sussex, continuing to make observing trips abroad and to attend international conferences, where he was in great demand.

He was a world leader in cosmical chemistry, especially in studies of the chemical evolution of galaxies. In 1990 he was awarded the Gold Medal of the Royal Astronomical Society and in 1992 he was elected to the Royal Society. At Nordita and the University of Copenhagen he taught courses, which led to the publication of his monograph "Nucleosynthesis and Chemical Evolution of Galaxies". Shortly before his death, Bernard completed the manuscript for the second edition of the book.

His death from cancer on 13 July deprives astronomy of one of its leading figures.

Risto Nieminen, Nordita's New Director

We are delighted to announce that Risto Nieminen, Academy Professor at the Laboratory of Physics at Helsinki University of Technology, has been appointed Director beginning July 1, 2007. Risto works in computational condensed-matter and materials physics, with interests in nanosciences and nanotechnology, complex materials and multiscale modelling of their properties and processing, high-performance computing and networking, numerical and computational methods. He is also interested in the history of science and the dialogue between science and society.

Letter from the Director


August afternoon outside Nordita

Nordita is both old and new. This year is the 50th anniversary of the institute, having been founded around Niels Bohr in Copenhagen in 1957. The "new" Nordita in Stockholm faces exciting challenges and opportunities. The world and also the world of theoretical physics are very different from what they were in 1957. I look forward to working for Nordita, in helping to make it flourish also in the future. To succeed, Nordita needs the support of the physical sciences research community, not only in the greater Stockholm area and Sweden, but throughout Norden. I will continue to be based at Helsinki University of Technology, but will try spend as much time in Stockholm as possible, and also to make visits to the other great sites of theoretical physics research in the Nordic countries. I am happy to receive suggestions, input and feedback in matters related to Nordita, by email or other means of communication.

Invitation to propose scientific programs for 2008-2009

Nordita, the Nordic Institute for Theoretical Physics, was founded in Copenhagen 1957. Until 2006, Nordita was organized directly under the Nordic Council of Ministers. On Jan. 1, 2007. Nordita moved to the AlbaNova University Center in Stockholm

One basic concept under which Nordita operates is scientific programs. A scientific program is a workshop where a limited number of scientists work together on specific problems for a period of 1-2 months with at most 25 participants, a core of 8-12 internationally recognized leaders in the subject area of the program, 5-8 invited scientists from the Nordic countries, and limited number of accompanying postdocs and PhD students. Two principal investigators (PIs) are responsible for coordinating a program.

Nordita is a Nordic research institute, and in order to emphasize the Nordic aspect programs should be organized jointly by Nordita and a Nordic institute outside Sweden. Costs for the participating Nordic institute will be reimbursed by Nordita.

Five programs are funded by Nordita for the period 2007-2008:

  • Exotic quantum liquids (Egor Babaev KTH, Hans Hansson SU, Mats Wallin KTH, Frank Wilczek MIT), one month during the fall of 2007
  • TeV scale physics and dark matter (Katri Huitu Helsinki, Per Osland Bergen), two months during the spring 2008
  • Collective dynamics in information systems (Erik Aurell KTH, Mikko Alava Helsinki), one month during the spring 2008
  • Origins of homochirality (Axel Brandenburg Nordita, Raphaël Plasson Montpellier), February 2008
  • Turbulence and dynamos (Anvar Shukurov Newcastle UK, Kandaswamy Subramanian Pune India), one month during the spring 2008.

Nordita now invites members of the scientific community, both in the Nordic countries and worldwide, to propose scientific programs for 2008/2009.

A successful application for a scientific program should include:

  • A clearly motivated scientific case. In particular the benefits for the Nordic research community should be pointed out. This part of the application should not exceed 2 pages.
  • A list of 8-12 scientists willing to apply for participating in the program. They should all intend to stay at Nordita for most of the duration of the program. Stays less than three weeks are discouraged.
  • Two principal investigators. With the exception of short visits to other places they should be present during the entire duration of the program. At least one PI should be present at all times.
  • A budget. As a guideline, a budget should normally not exceed SEK 450000 (?47400) for a one-month program. The budget will be subject to discussions between the applicant and Nordita?s board.

The proposals will be evaluated by Nordita?s Scientific Advisory Committee. The board will decide on successful applications in November 2007. Proposals for special scientific programs for fall 2008 and spring 2009 should be submitted as PDF files to programs@nordita.org before 15 October 2007.

Upcoming Nordita Programs

Potential program participants are encouraged to apply on the respective web pages of these programs.

Quantum Fluids

15 August - 30 September 2007

Focus of the program: quantum fluids, Bose-Einstein condensates, supersolids, quantum hall systems, exotic states such as projected quantum fluid states of metallic hydrogen, topological defects and vortex matter in quantum fluids.

Home page: www.nordita.org/qf2007

Organizers: Egor Babaev (KTH), Hans Hansson (SU), Anders Karlhede (SU), Susanne Viefers (UIO), Mats Wallin (KTH), Frank Wilczek (MIT)

Origins of homochirality

1-29 February 2008

Home page: http://agenda.albanova.se/conferenceDisplay.py?confId=322

Organizers:  Axel Brandenburg (Nordita), Raphaël Plasson (Montpellier), Anja C. Andersen (Copenhagen)

Collective dynamics in information systems

1-31 May 2008

Home page: http://agenda.albanova.se/conferenceDisplay.py?confId=296

Organizers: Erik Aurell (KTH), Mikko Alava (Helsinki)

TeV scale physics and dark matter

Two months during the spring 2008

Organizers: Katri Huitu (Helsinki), Per Osland (Bergen)

Turbulence and dynamos

16 March - 19 April 2008

Organizers: Anvar Shukurov (Newcastle UK), Kandaswamy Subramanian (Pune India), Maarit J. Korpi (Helsinki)

Recent Nordita meetings

Statistical Mechanics of Distributed Information Systems

In July, Nordita, together with the Academy of Finland and the Swedish Science Council, sponsored a meeting titled "Statistical Mechanics of Distributed Information Systems". A satellite conference of Statphys 23, it was held in Mariehamn, Åland. Recent years have seen exciting new developments on the frontier between physics and computer science, where statistical physicists have been able to contribute to the understanding of classic optimization and coding/decoding problems using and extending theoretical technology first developed for spin glasses. The first such work was focused on characterizing the solutions of these problems statistically, but, more recently, ideas from physics have helped in developing effective algorithms for solving them. The scope of the meeting was broader, however, including topics such as random graph coloring and market dynamics. A number of the talks dealt with problems originating in or connecting to biology, such as evolutionary game theory, neural spike train statistics, and genetic networks. One of Nordita's upcoming Programs, to be held in May 2008 and titled "Collective Dynamics in Information Systems", will deal with problems in this area.

Pencil Code User Meeting

14-17 August in Stockholm.

The purpose of the meeting was to bring the core developers together and to allow others to interact with them and learn more about the Pencil Code (http://www.nordita.org/pencil-code/). The code is a multipurpose code for massively parallel computing (especially on the cheaper Linux cluster). It includes optionally hydrodynamics, magnetic fields, radiation, ionization, ulti-species dust dynamics with coagulation, and certain reaction-diffusion quations. It is developed and maintained under the Concurrent Versioning System (CVS; see http://www.nongnu.org/cvs/) by around 25 people with check-in ermission and has been downloaded by over 450 registered users (without check-in permission).

This was the third meeting of this kind which brought together some 19 Pencil Code users from around the world including Calgary, Cambridge, Freiburg, Halifax, Heidelberg, Helsinki, London, Potsdam, Stanford, Stockholm, Toulouse, and Uppsala. The program of the 4 day meeting included 19 talks of about 30+15 minutes with science results and 9 discussion sessions where a number of emerging issues were considered. Some of the scientific highlights include presentations about the co-evolution of dust and gas in magnetized self-gravitating shearing sheets, the introduction of curvilinear coordinates, hydrodynamic and hydromagnetic simulations of Taylor-Couette flows in cylindrical coordinates, the implementation of an implicit solver of the heat equation and of a multigrid solver for the Poisson equation. The discussion topics included in particular the anticipated migration from CVS to the ubversion repository, the change to version 3 of the GPL license agreement, improvements of the suite of automatic nightly tests of the code, improvements of the manual, a multi-author paper discussing methods and tests, as well as discussions about curvilinear coordinate systems and the option of using upwinding derivatives in cartesian and noncartesian coordinate systems. All talks are recorded and now publicly available as streaming videos; see http://agenda.albanova.se/conferenceDisplay.py?confId=185.

A detailed report of the meeting is available on the web under the address http://agenda.albanova.se/conferenceDisplay.py?confId=185.

Nordita Preprints

→ Link to electronic preprints: www.nordita.org/preprints

2007-020
Kappa-symmetry and coincident D-branes
P.S.Howe, U.Lindström and L.Wulff
2007-021
Decoupling limits of N=4 super Yang-Mills on R x S^3
Troels Harmark, Kristjan R. Kristjansson, Marta Orselli
2007-022
T-duality and Generalized Kahler Geometry
Ulf Lindström, Martin Rocek, Itai Ryb, Rikard von Unge and Maxim Zabzine
2007-023
Coherence and clock shifts in ultracold Fermi gases with resonant interactions
G. Baym, C. J. Pethick, Z. Yu, and M. W. Zwierlein
2007-024
Instantons in N=2 magnetized D-brane worlds
M. Billo, M. Frau, P. Di Vecchia, A. Lerda and R. Marotta
2007-025
The beginning of string theory: a historical sketch
Paolo Di Vecchia and Adam Schwimmer

Next Board Meeting

The next Nordita board meeting takes place in Stockholm on 31 August.

Items for Nordita News

If you have information about meetings or other items that would be useful to include in Nordita News, please send it to Anne Jifält, Nordita, email: anne@kth.se

Subscribe   |   Unsubscribe   |   RSS   |   Archive   |   Contact Us   |   Site Notice   |   Cookie Policy