arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0904.0847cond-mat.stat-mech
收藏

Cayley树上的一类可解反应扩散过程

Class of solvable reaction-diffusion processes on Cayley tree

M. Alimohammadi, N. Olanj

摘要:

考虑Cayley树上最一般的单种群反应扩散过程,证明了存在两个可积模型。在第一个模型中,反应是各种创建过程,即$\circ\circ\to\bullet\circ$,$\circ\circ\to\bullet\bullet$和$\circ\bullet\to\bullet\bullet$,而在第二个模型中,只有扩散过程$\bullet\circ\to\circ\bullet$存在。对于第一种模型,精确地求出了在Cayley树的第$l$层上发现$m$粒子的概率$P_l(m;t)$,对于第二种模型,计算了函数$P_l(1;t)$.它已被证明,这些是唯一的可积模型,如果一个限制自己的$L+1$壳概率$P(m_0,m_1,...,m_L;t)$ s。

英文摘要:

Considering the most general one-species reaction-diffusion processes on a Cayley tree, it has been shown that there exist two integrable models. In the first model, the reactions are the various creation processes, i.e. $\circ\circ\to\bullet\circ$, $\circ\circ\to\bullet\bullet$ and $\circ\bullet\to\bullet\bullet$, and in the second model, only the diffusion process $\bullet\circ\to\circ\bullet$ exists. For the first model, the probabilities $P_l(m;t)$, of finding $m$ particles on $l$-th shell of Cayley tree, have been found exactly, and for the second model, the functions $P_l(1;t)$ have been calculated. It has been shown that these are the only integrable models, if one restricts himself to $L+1$-shell probabilities $P(m_0,m_1,...,m_L;t)$s.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑