Imperial College London
Portrait Picture

DrChiu FanLee

Faculty of Engineering, Department of Bioengineering

Reader in Theoretical Biophysics
 
 
 
//

Contact

 

+44 (0)20 7594 6493c.lee Website

 
 
//

Location

 

3.17Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Chen:2020,
author = {Chen, L and Lee, CF and Toner, J},
journal = {Physical Review Letters},
title = {Moving, reproducing, and dying beyond Flatland: Malthusian flocks in dimensions d>2},
url = {https://journals.aps.org/prl/accepted/02078Yd4Dd71757b48440159be15e1abc416e7102},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We show that “Malthusian flocks” – i.e., coherently moving collections of self-propelled entities (such as living creatures) which are being “born” and “dying” during their motion – belong to a new universality class in spatial dimensions d>2. We calculate the universal exponents and scaling laws of this new universality class to O() in an =4−d expansion, and find these are different from the “canonical” exponents previously conjectured to hold for “immortal” flocks (i.e., those without birth and death) and shown to hold for incompressible flocks in d>2. Our expansion should be quite accurate in d=3, allowing precise quantitative comparisons between our theory, simulations, and experiments.
AU  - Chen,L
AU  - Lee,CF
AU  - Toner,J
PY  - 2020///
SN  - 0031-9007
TI  - Moving, reproducing, and dying beyond Flatland: Malthusian flocks in dimensions d>2
T2  - Physical Review Letters
UR  - https://journals.aps.org/prl/accepted/02078Yd4Dd71757b48440159be15e1abc416e7102
UR  - http://hdl.handle.net/10044/1/81844
ER  -
Download