2019
DOI: 10.48550/arxiv.1906.01053
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Multi-time distribution in discrete polynuclear growth

Abstract: We study the multi-time distribution in a discrete polynuclear growth model or, equivalently, in directed last-passage percolation with geometric weights. A formula for the joint multi-time distribution function is derived in the discrete setting. It takes the form of a multiple contour integral of a block Fredholm determinant. The asymptotic multi-time distribution is then computed by taking the appropriate KPZ-scaling limit of this formula. The distribution is expected to be universal in the KPZ universality… Show more

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Cited by 13 publications
(28 citation statements)
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“…On a related, but different, line of recent works, efforts have also been directed to obtain exact formulae for the one-point or multi-point joint distribution of the profile at two (on-scale) separated time points. This originated with Johansson's work in Brownian LPP [34] and has been continued for geometric LPP and discrete polynuclear growth [34,35,36] (see also [24] for a replica calculation). In parallel, the works [2,39] have obtained exact asymptotic formulae for the two time distribution for the height function of TASEP (related to Exponential LPP by the standard coupling) with different initial conditions.…”
Section: Background and Related Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…On a related, but different, line of recent works, efforts have also been directed to obtain exact formulae for the one-point or multi-point joint distribution of the profile at two (on-scale) separated time points. This originated with Johansson's work in Brownian LPP [34] and has been continued for geometric LPP and discrete polynuclear growth [34,35,36] (see also [24] for a replica calculation). In parallel, the works [2,39] have obtained exact asymptotic formulae for the two time distribution for the height function of TASEP (related to Exponential LPP by the standard coupling) with different initial conditions.…”
Section: Background and Related Resultsmentioning
confidence: 99%
“…Although the joint distribution of the height function at different spatial locations at a given time have been more classically studied, significant recent interest has been devoted to understanding the joint distribution of the profile at two (on-scale separated) time points starting from a general initial condition. There has been a number of recent works obtaining exact formulae for the two time joint distribution for a number of models in the KPZ universality class [34,35,36,2,39]. Typically the formulae are quite involved and it does not appear to be straightforward to extract the asymptotics of some interesting statistics for the time evolution of the interface.…”
mentioning
confidence: 99%
“…For the models in the infinite domain, Johansson computed the two-time distribution for a directed last passage percolation model in [Joh17] and for the discrete-time TASEP in [Joh19]. Most recently, in the span of about one month, the multitime distribution was evaluated in [JR19] for a directed last passage percolation model and, independently. in [Liu19] for the (continuous-time) TASEP.…”
Section: )mentioning
confidence: 99%
“…in [Liu19] for the (continuous-time) TASEP. The work [JR19] was for the step initial condition while the work [Liu19] was for both the step or flat initial conditions. We mention that the formulas of these two papers are different, and it still remains to show that they are equal.…”
Section: )mentioning
confidence: 99%
“…Newer integrable ideas have yielded a richer set of formulas, e.g. see Johansson and Rahman[JR19]; Liu[Liu19]; and Matetski, Quastel, and Remenik[MQR16].The works discussed above provide a strong integrable framework for understanding the directed landscape. More recently, probabilistic and geometric methods have been used in conjunction with a few key integrable inputs to prove regularity results, convergence statements, and exponent estimates in such models.…”
mentioning
confidence: 99%