Nordita News 2001/5


Ralf Metzler New Assistant
Professor in Biophysics at Nordita

We welcome Ralf Metzler as Nordita's first assistant professor in biophysics. He was born in Neuenbürg (Württ.) in the Calw district in 1968, and pursued his studies at the University of Ulm where he obtained his Diplom and PhD (Dr. rer. nat.) under the supervision of Theo Nonnenmacher in the Mathematical Physics Department, working on fractional model equations for anomalous relaxation and diffusion processes. During his first postdoc with Joseph Klafter in Tel Aviv (1998-2000), he studied the stochastic foundations of fractional Fokker-Planck equations. As a visiting scientist with Peter Wolynes at the University of Illinois, he started to work on genetic switches. In August 2000, he went to MIT to investigate knotted polymers, DNA packaging and the DNA helix-coil transition with Mehran Kardar. Ralf will take up his position at Nordita on 1st April 2002.


NORDITA Fellowships 2002/2003
Nordita announces research fellowships for Nordic physicists in theoretical physics, including: astrophysics, biological physics, condensed matter physics, nuclear physics, and particle physics. Further details and an on-line application form may be found at http://www. nordita.dk/positions . Please ensure that potential candidates in particular those at institutes outside the Nordic countries, receive this information. Deadline: 15 November 2001.


Board Meeting
Nordita's Board will meet on 1 and 2 November 2001 in Copenhagen.


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 Ø, 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.


Electronic Nordita News
You may order the electronic version of Nordita News by subscribing to our listserver. To obtain information on how to add your name to the recipient list, send an e-mail (with empty or no subject line): To: listserv@nordita.dk , Subject: (empty or none) with the following lines of text: info nordita_news. For general questions about Nordita, please send an e-mail to nordita@nordita.dk .


Visitors at Nordita 2001
http://www.nordita.dk/contact/visitors.html

B. V. Rekowski, AP Newcastle Univ. 2 weeks in Oct./ Nov.
M. Zvonarev, CM St. Petersburg 11.10.01 - 11.11.01
M. Kiraga, AP Warsaw Univ. 27.10.01 - 03.11.01
D. Fanelli, AP KTH 31.10.01 - 05.11.01
W. Weise Trento 26.11.01 - 30.11.01
C.-H. Lee, AP KIAS 8 days December
S. Glashow, HE Harvard/Boston Univ. 13.12.01-16.12.01

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.


New Long-term Visitors at Nordita
http://www.nordita.dk/contact/visitors.html

C. Vogt, HE/NP Germany 01.10.01-30.09.02



New Nordita Fellows
The following new Nordita Fellows have taken up residence in Copenhagen:
Finland: P. Keränen (SA/AP) K. Tuominen (SA/AP) Sweden: M. Christensson (AP/SA)



Preprints/Reprints: http://www.nordita.dk/preprints/
 New preprints and reprints obtainable from Jette Nielsen, e-mail: nielsen@nordita.dk.


D.K. Hong, S. D. H. Hsu, and F. Sannino: Supernovae, hypernovae and color superconductivity. 2001-19 HE.

J.T. Lenaghan, F. Sannino, and K. Splittorff: The superfluid and conformal phase transitions of two-color QCD. 2001-20 HE.

M. Hörnquist: Scale-free networks are not robust under neutral evolution. 2001-21 CM.

M. Ossendrijver, M. Stix, and A. Brandenburg: Magnetoconvection and dynamo coefficients: Dependence of the alpha-effect on rotation and magnetic field. 2001-25 AP.

S. Jonsell, A. Saenz, P. Frölich, B. Zygelman, and A. Dalgarno: Stability of hydrogen-antihydrogen mixtures at low energies. 2001-26 CM.

S. Jonsell, A. Saenz, P. Frölich, R.C. Forrey, R. Cote, and A. Dalgarno: Long-range interaction between two 2s excited hydrogen atoms. 2001-27 CM.

A. Brandenburg: Computational aspects of astrophysical MHD and turbulence. 2001-28 AP.

O.F. Syljuåsen and P.A. Lee: Anomalous spin excitation spectrum of the Heisenberg model in a magnetic field. 2001-29 CM.

A. Brandenburg and G.R. Sarson: The effect of hyperdiffusivity on turbulent dynamos with helicity. 2001-30 AP.

K.A. Eriksen and M. Hörnquist: Scale-free growing networks imply linear preferential attachment. 2001-31 CM.

E. Lennholm and M. Hörnquist: Fluxon dynamics in aperiodically ordered arrays of Josephson junctions. 2001-32 CM.

K. Kajantie, M. Laine, T. Neuhaus, A. Rajantie, and K. Rummukainen: O(2) symmetry breaking vs. vortex loop percolation. Phys. Lett. B482, 114 (2000).

P.H. Damgaard, U.M. Heller, R. Niclasen, and K. Rummukainen: Low-lying eigenvalues of the QCD Dirac operator at finite temperature. Nucl. Phys. B583, 347 (2000).

C. J. Pethick and L. P. Pitaevskii: On the criterion for Bose-Einstein condensation for particles in traps. Phys. Rev. A 62, 033609 (2000).

O. F. Syljuåsen and H. M. Rønnow: Quantum renormalization of high energy excitations in the 2D Heisenberg antiferromagnet. J. Phys.: Condens. Matter 12, L405 (2000).

P. Eden: On energy conservation in Lund string fragmentation. J. of High Energy Phys. 5, 029 (2000).

J.M. Cline, M. Joyce, and K. Kainulainen: Supersymmetric electroweak baryogenesis. J. of High Energy Phys. 7, 018 (2000).

T. Harmark and N.A. Obers: Hagedorn behaviour of little string theory from string corrections to NS5-branes. Phys. Lett. B485, 285 (2000).

G. M. Kavoulakis, B. Mottelson, and C. J. Pethick: Weakly-interacting Bose-Einstein condensates under rotation. Phys. Rev. A62, 063605 (2000).

A. D. Jackson, G. M. Kavoulakis, B. Mottelson, and S. M. Reimann:Weakly interacting Bose-Einstein condensates under rotation: Mean-field versus exact solutions. Phys. Rev. Lett. 86, 945 (2001).

H. Heiselberg, C. J. Pethick, H. Smith, and L. Viverit: Influence of induced interactions on the superfluid transition in dilute Fermi gases. Phys. Rev. Lett. 85, 2418 (2000).

N. Marchal, S. Peigne, and P. Hoyer: Quarkonium production through hard comover scattering. II. Phys. Rev. D62, 114001 (2000).

S. Davidson, S. Hannestad, and G. Raffelt: Updated bounds on milli-charged particles. J. of High Energy Phys. 5, 3 (2000).

S. Hannestad: New constraints on neutrino physics from Boomerang data. Phys. Rev. Lett. 85, 4203 (2000).

A. D. Jackson and G. M. Kavoulakis: Analytical results for a trapped, weakly-interacting Bose-Einstein condensate under rotation. Phys. Rev. Lett. 85, 2854 (2000).

J. Ambjørn, K.N. Anagnostopoulos, W. Bietenholz, T. Hotta, and J. Nishimura: Monte Carlo studies of the IIB matrix model at large N. J. of High Energy Phys. 7, 011 (2000).

N.A. Obers and B. Pioline: Exact thresholds and instantons effects in D=3 string theories. J. of High Energy Phys. 7, 3 (2000).

S. Hannestad, H.-Thomas Janka, G. G. Raffelt, and G. Sigl: Electron-, Mu-, and Tau-Number conservation in a supernova core. Phys. Rev. D62, 093021 (2000).

K. Johnsen and G. M. Kavoulakis: Probing Bose-Einstein condensation of excitons with electromagnetic radiation. Phys. Rev. Lett. 86, 858 (2001).

U. Torkelsson, G.I. Ogilvie, A. Brandenburg, J.E. Pringle, Å. Nordlund, and R.F. Stein: The response of a turbulent accretion disc to an imposed epicyclic shearing motion. M.N.R.A.S. 318, 47 (2000).

M. Bertolini and M. Trigiante: Microscopic entropy of the most general four-dimensional BPS black hole. J. of High Energy Phys. 10, 2 (2000).

M. Bertolini, P. Di Vecchia, M. Frau, A. Lerda, R. Marotta, and R. Russo: Is a classical description of stable non-BPS D-branes possible? Nucl. Phys. B590, 471 (2000).

P.H. Damgaard, U.M. Heller, R. Niclasen, and K. Rummukainen: Eigenvalue distributions of the QCD Dirac operator. Phys. Lett. B495, 263 (2000).

K. Kajantie, M. Laine, K. Rummukainen, and Y. Schroder: Resumming long-distance contributions to the QCD pressure. Phys. Rev. Lett. 86, 10 (2001).