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| 題 名 | Phase Diagram of a Partially Asymmetric Exclusion Model with Open Boundaries: Numerical Study |
|---|---|
| 作 者 | Bengrine,M.; Benyoussef,A.; Chakib,H.; Ez-zahraouy,H.; Mhirech,F.; | 書刊名 | Chinese Journal of Physics |
| 卷 期 | 37:6 1999.12[民88.12] |
| 頁 次 | 頁559-568 |
| 分類號 | 331.9 |
| 關鍵詞 | |
| 語 文 | 英文(English) |
| 英文摘要 | The effects of the right (left) jump p(q) and the probability of jumping Dt on densities, current and phase diagrams in the open boundaries of one dimensional partially asymmetric models are studied using the mean-field approximation and numerical simulations. However, for p≠q the system exhibits a first order transition between the low and high density phases, while for p=q such transition disappears. Furthermore, when the rate of the injected particles at the left, α1, is equal to the right one, α2, and the rate of the removed particles at the left, β1, is equal to the right one, β2, the region of maximal current phase disappears. While in the general case α1 ≠ α2 and β1 ≠ β2, three phases are encountered namely a low density phase, a high density phase and a maximal current phase. The increase of Dt favours the first order transition and reduces the region of the maximal current phase. However, when Dt is sufficiently small the mean-field theory is in excellent agreement with simulations. |
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