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@ARTICLE{Hallatschek:1008314,
author = {Hallatschek, Oskar and Datta, Sujit S. and Drescher, Knut
and Dunkel, Jörn and Elgeti, Jens and Waclaw, Bartek and
Wingreen, Ned S.},
title = {{P}roliferating active matter},
journal = {Nature reviews / Physics},
volume = {5},
issn = {2522-5820},
address = {London},
publisher = {Springer Nature},
reportid = {FZJ-2023-02276},
pages = {407–419},
year = {2023},
abstract = {The fascinating patterns of collective motion created by
autonomously driven particles have fuelled active-matter
research for over two decades. So far, theoretical
active-matter research has often focused on systems with a
fixed number of particles. This constraint imposes strict
limitations on what behaviours can and cannot emerge.
However, a hallmark of life is the breaking of local cell
number conservation by replication and death. Birth and
death processes must be taken into account, for example, to
predict the growth and evolution of a microbial biofilm, the
expansion of a tumour, or the development from a fertilized
egg into an embryo and beyond. In this Perspective, we argue
that unique features emerge in these systems because
proliferation represents a distinct form of activity: not
only do the proliferating entities consume and dissipate
energy, they also inject biomass and degrees of freedom
capable of further self-proliferation, leading to myriad
dynamic scenarios. Despite this complexity, a growing number
of studies document common collective phenomena in various
proliferating soft-matter systems. This generality leads us
to propose proliferation as another direction of
active-matter physics, worthy of a dedicated search for new
dynamical universality classes. Conceptual challenges
abound, from identifying control parameters and
understanding large fluctuations and nonlinear feedback
mechanisms to exploring the dynamics and limits of
information flow in self-replicating systems. We believe
that, by extending the rich conceptual framework developed
for conventional active matter to proliferating active
matter, researchers can have a profound impact on
quantitative biology and reveal fascinating emergent physics
along the way.},
cin = {IBI-5 / IAS-2},
ddc = {530},
cid = {I:(DE-Juel1)IBI-5-20200312 / I:(DE-Juel1)IAS-2-20090406},
pnm = {5243 - Information Processing in Distributed Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5243},
typ = {PUB:(DE-HGF)16},
pubmed = {37360681},
UT = {WOS:000999177600001},
doi = {10.1038/s42254-023-00593-0},
url = {https://juser.fz-juelich.de/record/1008314},
}