Low-energy effective theory for one-dimensional lattice bosons near integer filling

Yu Wen Lee, Yu Li Lee, Min Fong Yang

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A low-energy effective theory for interacting bosons on a one-dimensional lattice at and near integer fillings is proposed. It is found that two sets of bosonic phase fields are necessary in order to explain the complete phase diagram. Using the present effective theory, the nature of the quantum phase transitions among various phases can be identified. Moreover, the general condition for the appearance of the recently proposed Pfaffian-like state can be realized from our effective action.

Original languageEnglish
Article number075117
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number7
Publication statusPublished - 2007 Aug 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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