Next: Work Accomplished in 2002
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Main Objectives
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development of new field theoretical
methods which can be used in situations where perturbative
methods fail.
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ultimate goal: to bring higher standards of accuracy in
quantum field theory and to be able to make predictions that can be
compared with experiments which emphasize precision (g-2, hadronic
width of the Z, etc...).
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ongoing projects: modified perturbative methods, numerical RG
calculations
and large-N expansions (see next section).
Publications in 2002
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Y. Meurice, Simple Method to Make Asymptotic Series of Feynman
Diagrams Converge, Phys. Rev. Lett. 88, 141601 (2002).
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Y. Meurice and S. Niermann, From Nonlinear Scaling Fields to Critical
Amplitudes, J. Stat. Phys. 108, 213 (2002).
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Y. Meurice, Arbitrarily Accurate Eigenvalues for One-dimensional
Polynomial Potentials, J. Phys. A 35, 8831 (2002).
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Y. Meurice, Complex Singularities of the Critical Potential in the
Large-N limit, hep-th/0208181, Phys. Rev. D (in press).
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Y. Meurice, Large Field Cutoffs Make Perturbative Series Converge,
Nucl. Phys. Proc. Suppl. 106, 908 (2002).
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L. Li and Y. Meurice, A Study of Large Field Configurations in MC
Calculations, hep-lat/0209085.
Visits, Conferences and Presentations in 2002
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Fermilab for two weeks in June.
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Argonne Nat. Lab. (talk)
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Lattice 2002 (talk)
and the Beowulf Cluster Workshop which followed in
Boston (supported by the grant).
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TH2002 in Paris (supported by the grant).
Internal Funding
As our computer needs start exceeding what can be achieved with a PC
or a workstation, I have tried to obtain funding from the University
to build commodity clusters.
Students Involved:
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B. Oktay: supported until summer 2001 (Ph. D.);
postdoc at the University of
Illinois at Urbana Champaign; talk at the conference Lattice 2002;
two papers in progress (related to his Ph. D.).
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L. Li: passed the qualifying exam
and the comprehensive exam; recipient of the Goertz-Nicholson
award in May 2001;
supported by the grant as a RA; his
expertise in computer
science is crucial for most of our ongoing projects.
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Andreas Soemadi: finishing his dissertation on small denominator
problems (not supported by the
grant).
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Brian Kessler: undergraduate student;
supported by a Undergraduate
Scholar Assistantship from the University; works on
analytical methods to calculate the coefficients of
modified perturbative series.
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Yannick Meurice
Tue Dec 10 22:51:23 CST 2002