Phase transitions in an interacting boson model with near-neighbor repulsion
- 1 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (1) , 362-373
- https://doi.org/10.1103/physrevb.50.362
Abstract
We study the order of the zero temperature quantum phase transitions at density ρ=1 in the one-dimensional extended boson Hubbard model by examining the order parameter distribution and hysteresis effects. The phase diagram of the model at ρ=1/2, a generalization of the spin-1/2 XXZ Hamiltonian, is also obtained, and the possibility of a supersolid region is discussed.Keywords
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