Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective force generated by multiple biofilaments can exceed the sum
  of forces due to individual ones   Collective dynamics and force generation by cytoskeletal filaments are
crucial in many cellular processes. Investigating growth dynamics of a bundle
of N independent cytoskeletal filaments pushing against a wall, we show that
chemical switching (ATP/GTP hydrolysis) leads to a collective phenomenon that
is currently unknown. Obtaining force-velocity relations for different models
that capture chemical switching, we show, analytically and numerically, that
the collective stall force of N filaments is greater than N times the stall
force of a single filament. Employing an exactly solvable toy model, we
analytically prove the above result for N=2. We, further, numerically show the
existence of this collective phenomenon, for N>=2, in realistic models (with
random and sequential hydrolysis) that simulate actin and microtubule bundle
growth. We make quantitative predictions for the excess forces, and argue that
this collective effect is related to the non-equilibrium nature of chemical
switching.

27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn