Quantum criticality for few-body systems: Path-integral approach

R. A. Sauerwein, S. Kais

Research output: Contribution to journalArticle

4 Citations (Scopus)


An attempt is made to illustrate that the mapping to a classical lattice system brings a more fundamental definition of phase transition, and consequently, other tools to find the transition points. In particular, it is shown that the classical lattice mapping using Feyman's path integral has a known scaling behavior when the principle is free.

Original languageEnglish
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number5 II
Publication statusPublished - 1 Nov 2001
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Mathematical Physics

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