Phase transitions induced by competition of two driven parts in a periodic system

Qi-Hong Shi, Rui Jiang, Mao-Bin Hu, Qing-Song Wu
2012 Physical Review E  
This paper studies a periodic driven diffusive system, which separates into two equal-sized parts with different values of hopping rates. Competition of the two different driven parts leads to various bulk-driven phase transitions, including shock and antishock. More interestingly, for the symmetric scenario, one can observe shock and antishock simultaneously in the system. We have explained the coexistence of shock and antishock via the effective boundary reservoir density. Theoretical
more » ... Theoretical analysis has been carried out to characterize the emerging nonequilibrium steady states, which is in good agreement with Monte Carlo simulations.
doi:10.1103/physreve.85.041131 pmid:22680442 fatcat:ryag6v2emzev5b5ivx5yqmurr4