Van der Waals forces and Photon-less Effective Field Theories

Details Van der Waals forces and Photon-less Effective Field Theories Van der Waals forces and Photon-less Effective Field Theories

2010-12-10

arxiv.org/abs/1012.2284v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure. Presented at 21th European Conference On Few-Body Problems In Physics (EFB21) 29 Aug - 3 Sep 2010, Salamanc

Scientific paper

In the ultra-cold regime Van der Waals forces between neutral atoms can be represented by short range effective interactions. We show that universal low energy scaling features of the underlying vdW long range force stemming from two photon exchange impose restrictions on an Effective Field Theory without explicit photons. The role of naively redundant operators, relevant to the definition of three body forces, is also analyzed.

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