Martin Savage email@example.com
Workshop on Finite-volume effects in few-body systems
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Simulations and Symmetries: Cold Atoms, QCD, and|
March 15 - May 21, 2010
This INT program will explore the connections between QCD, cold-atom
physics, and few-hadron systems. These disparate topics are related in a
number of ways. The overall goal of the program is to bring practitioners from
these different communities to the INT in order to:
The combination of input from lattice QCD and insights from cold-atom systems
has the potential to significantly advance knowledge of few-hadron dynamics.
The connection between lattice QCD and this dynamics is simple to state: such
simulations allow hadron-hadron and three-hadron interactions to be rigorously
computed from QCD. This will forge a direct link between QCD and nuclear
physics. This process is already underway, with the first computation of NN
scattering in full QCD recently appearing, and calculations in systems of up
to 12 mesons, including the first lattice calculation of a kaon condensate.
Effective field theories based on the chiral symmetry of QCD will play an
extensive role in connecting lattice computations to few-hadron
phenomenology. Further, it is these EFT methods, in tandem with traditional
few-body methods, that will provide the bridge from lattice QCD to the nuclei
in the mass range A=4-12 that it is simply impractical to simulate on the
- Enhance understanding of the effective few-hadron picture that
emerges from the strongly interacting many-body dynamics of QCD
at low energies;
- Cross-fertilize the fields of nuclear physics and ultra-cold
atoms, through the exploration of common techniques for
understanding these systems, and recent experimental results
relevant to few- and many-body systems with resonant interactions
- Use the drive to constrain few-hadron interactions to stimulate
further advances in lattice QCD theory and computation.
Meanwhile, an explosion of interest in atomic systems near the "unitary limit"
(where the two-body scattering length becomes infinite) has been driven by
novel experiments and the consequent role of these systems as testing grounds
for approximations that are used in many-body systems. In the case of
few-nucleon physics nature has provided us with a two-body system with a large
scattering length. Thus few-nucleon dynamics shares universal
features-features associated with the presence of a large scattering length
and insensitive to the details of the underlying interaction-with the physics
of cold atoms near Feshbach resonances.
We want to use the ten weeks of this program to bring the different communities working on these problems
together and so move all three sub-fields forward.