Convergence of quenched Lyapunov exponents to the annealed exponent at high mobility
Convergence of quenched Lyapunov exponents to the annealed exponent at high mobility
Let denote the quenched Lyapunov exponent of order for mobility parameter , and let be the corresponding exponent of order zero. In the population-dynamics interpretation, describes the asymptotic fraction of time that the fastest-growing -particle lineages spend on -particles. High-mobility convergence conjecture. As the mobility parameter tends to infinity, the quenched Lyapunov exponents should merge with the corresponding annealed Lyapunov exponents, in the sense that
for all . This predicts that sufficiently rapid motion suppresses the distinction between the quenched exponents of positive order and the order-zero exponent; the source presents it as an expectation, and no resolution is supplied here.
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Primary source
Dirk Erhard, Frank den Hollander and Grégory Maillard, “The parabolic Anderson model in a dynamic random environment: basic properties of the quenched Lyapunov exponent”, arXiv:1208.0330 (2013).
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