Temperature effects on superfluid phase transition in Bose–Hubbard model with three-body interaction

2014 ◽  
Vol 378 (45) ◽  
pp. 3402-3405 ◽  
Author(s):  
T.K. Kopeć ◽  
M.W. Szymański
Keyword(s):  
Phase Transition ◽  
Hubbard Model ◽  
Temperature Effects ◽  
Superfluid Phase ◽  
Body Interaction ◽  
Three Body

scholarly journals One-dimensional Bose-Hubbard model with pure three-body interactions

Open Physics ◽  
2014 ◽  
Vol 12 (7) ◽  
Author(s):  
Tomasz Sowiński
Keyword(s):  
Hubbard Model ◽  
Universality Class ◽  
Density Matrix Renormalization Group ◽  
Superfluid Phase ◽  
Group Approach ◽  
One Dimensional ◽  
Density Matrix Renormalization ◽  
Renormalization Group Approach ◽  
Insulating Phase ◽  
Three Body

AbstractThe extended Bose-Hubbard model with pure three-body local interactions is studied using the Density Matrix Renormalization Group approach. The shapes of the first two insulating lobes are discussed, and the values of the critical tunneling for which the system undergoes the quantum phase transition from insulating to superfluid phase are predicted. It is shown that stability of insulating phases, in contrast to the standard Bose-Hubbard model, is enhanced for larger fillings. It is also shown that, on the tip of the boundary of the insulating phase, the model under consideration belongs to the Berenzinskii-Kosterlitz-Thouless universality class.

scholarly journals Effects of an attractive three-body interaction on a spin-1 Bose Hubbard model

Laser Physics ◽  
2019 ◽  
Vol 29 (7) ◽  
pp. 075501
Author(s):  
Sk Noor Nabi ◽  
Saurabh Basu
Keyword(s):  
Hubbard Model ◽  
Body Interaction ◽  
Three Body

Structural Phase Transformation in SiC and PtC under Pressure

2013 ◽  
Vol 547 ◽  
pp. 79-82
Author(s):  
Sadhna Singh ◽  
V. Abdul Shukoor ◽  
M. Faisal Shareef
Keyword(s):  
Phase Transition ◽  
Nearest Neighbor ◽  
Structural Phase ◽  
Body Interaction ◽  
First Order Phase Transition ◽  
Phase Transition Pressure ◽  
Range Overlap ◽  
Three Body ◽  
Repulsive Forces ◽  
First Order Phase

The study of pressure induced structural phase transition of silicon carbide and platinum carbide which crystallize in zinc blende structure (B3), has been carried out using the well described three body interaction potential model (TBIPM). Our present TBIP model consists of long range Coulombic, three body interaction and the short range overlap repulsive forces operative up to next nearest neighbor ions. These materials exhibit a first order phase transition from their ZnS (B3) to NaCl (B1) structure. The phase transition pressure for SiC and PtC are 94.5 GPa and 50GPa respectively.

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