A KPZ Cocktail- Shaken, not stirred: Toasting 30 years of kinetically roughened surfaces

Abstract

The stochastic partial differential equation proposed nearly three decades ago by Kardar, Parisi and Zhang (KPZ) continues to inspire, intrigue and confound its many admirers. Here, we i) pay debts to heroic predecessors, ii) highlight additional, experimentally relevant aspects of the recently solved 1+1 KPZ problem, iii) use an expanding substrates formalism to gain access to the 3d radial KPZ equation and, lastly, iv) examining extremal paths on disordered hierarchical lattices, set our gaze upon the fate of $d$=$\infty$ KPZ. Clearly, there remains ample unexplored territory within the realm of KPZ and, for the hearty, much work to be done, especially in higher dimensions, where numerical and renormalization group methods are providing a deeper understanding of this iconic equation.

Mini-review, mixed w/ new results. 18 pages, 6 figures. Journal of Statistical Physics, in press; v2: corrects typos, adds refs

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• Facilitated exclusion process
• Searching for the Tracy-Widom distribution in nonequilibrium processes
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• Tracking evaporative cooling of a mesoscopic atomic quantum gas in real time
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• Quasi-stationary states in nonlocal stochastic growth models with infinitely many absorbing states
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