Deposited footprints let cells switch between confined, oscillatory, and exploratory migration

E Perez Ipiña, J d'Alessandro… - Proceedings of the …, 2024 - National Acad Sciences
For eukaryotic cells to heal wounds, respond to immune signals, or metastasize, they must
migrate, often by adhering to extracellular matrix (ECM). Cells may also deposit ECM …

Record ages of non-Markovian scale-invariant random walks

L Régnier, M Dolgushev, O Bénichou - Nature Communications, 2023 - nature.com
How long is needed for an observable to exceed its previous highest value and establish a
new record? This time, known as the age of a record plays a crucial role in quantifying …

Universal exploration dynamics of random walks

L Régnier, M Dolgushev, S Redner… - Nature …, 2023 - nature.com
The territory explored by a random walk is a key property that may be quantified by the
number of distinct sites that the random walk visits up to a given time. We introduce a more …

Tunable pheromone interactions among microswimmers

B Nakayama, H Nagase, H Takahashi… - Proceedings of the …, 2023 - National Acad Sciences
Indirect interactions via shared memory deposited on the field (“field memory”) play an
essential role in collective motions. Some motile species, such as ants and bacteria, use …

Effective mass approach to memory in non-Markovian systems

M Wiśniewski, J Łuczka, J Spiechowicz - Physical Review E, 2024 - APS
Recent pioneering experiments on non-Markovian dynamics done, eg, for active matter
have demonstrated that our theoretical understanding of this challenging yet hot topic is …

Size-dependent self-avoidance enables superdiffusive migration in macroscopic unicellulars

L Tröger, F Goirand, K Alim - Proceedings of the National …, 2024 - National Acad Sciences
Many cells face search problems, such as finding food, mates, or shelter, where their
success depends on their search strategy. In contrast to other unicellular organisms, the …

Range-controlled random walks

L Régnier, O Bénichou, PL Krapivsky - Physical Review Letters, 2023 - APS
We introduce range-controlled random walks with hopping rates depending on the range N,
that is, the total number of previously distinct visited sites. We analyze a one-parameter class …

Optimal foraging strategies can be learned

G Muñoz-Gil, A López-Incera, LJ Fiderer… - New Journal of …, 2024 - iopscience.iop.org
The foraging behavior of animals is a paradigm of target search in nature. Understanding
which foraging strategies are optimal and how animals learn them are central challenges in …

Non-Markovian and Collective Search Strategies

H Meyer, H Rieger - Target Search Problems, 2024 - Springer
Agents searching for a target can improve their efficiency by memorizing where they have
already been searching or by cooperating with other searchers and using strategies that …

Non-reversible Monte Carlo: An example of “true” self-repelling motion

AC Maggs - Europhysics Letters, 2024 - iopscience.iop.org
We link the large-scale dynamics of non-reversible Monte Carlo algorithms as well as a lifted
TASEP to an exactly soluble model of self-repelling motion. We present arguments for the …