Unitarity and Discrete Scale Invariance

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24 Scopus citations


While the complexity of some many-body systems may stem from a profusion of distinct scales, as we approach two-body unitarity (through experimental control or as a theoretical limit) rich structures exist even though there is no more than one essential scale. I comment, from the point of view of effective field theory, on some current problems in the transition from few to many bodies in bosonic and multi-state fermion systems, where order emerges from the discrete scale invariance associated with a single, contact three-body force.

Original languageEnglish (US)
Article number112
JournalFew-Body Systems
Issue number3
StatePublished - May 1 2017

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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