English

Emergent Geometric Hamiltonian and Insulator-Superfluid Phase Transitions

Disordered Systems and Neural Networks 2016-08-31 v2

Abstract

I argue that certain bosonic insulator-superfluid phase transitions as an interaction constant varies are driven by emergent geometric properties of insulating states. The {\em renormalized} chemical potential and distribution of disordered bosons define the geometric aspect of an effective low energy Hamiltonian which I employ to study various resonating states and quantum phase transitions. In a mean field approximation, I also demonstrate that the quantum phase transitions are in the universality class of a percolation problem.

Keywords

Cite

@article{arxiv.cond-mat/0503553,
  title  = {Emergent Geometric Hamiltonian and Insulator-Superfluid Phase Transitions},
  author = {Fei Zhou},
  journal= {arXiv preprint arXiv:cond-mat/0503553},
  year   = {2016}
}

Comments

5 pages, no figures; a reference added