2010/08/12 by Arvind Ayyer, Ayyer, Arvind, Volker Strehl +1
Mathematics · Physics and Astronomy · #05A05 #15B34 #60J27 #Combinatorics (math.CO) #FOS: Mathematics #FOS: Physical sciences #Mathematical Physics (math-ph) #math-ph #math.CO #math.MP #msc:05A05 #msc:15B34 #msc:60J27
paper · pdf · doi:10.48550/arxiv.1008.2134
12 pages, 5 figures, published in the proceedings of FPSAC 2010 in DMTCS Proceedings
arxiv created 2010/08/12 · arxiv updated 2010/08/13
In recent work on nonequilibrium statistical physics, a certain Markovian exclusion model called an asymmetric annihilation process was studied by Ayyer and Mallick. In it they gave a precise conjecture for the eigenvalues (along with the multiplicities) of the transition matrix. They further conjectured that to each eigenvalue, there corresponds only one eigenvector. We prove the first of these conjectures by generalizing the original Markov matrix by introducing extra parameters, explicitly calculating its eigenvalues, and showing that the new matrix reduces to the original one by a suitable specialization. In addition, we outline a derivation of the partition function in the generalized model, which also reduces to the one obtained by Ayyer and Mallick in the original model.