Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stochastic gene expression as a many body problem   Gene expression has a stochastic component owing to the single molecule
nature of the gene and the small number of copies of individual DNA binding
proteins in the cell. We show how the statistics of such systems can be mapped
on to quantum many body problems. The dynamics of a single gene switch
resembles the spin boson model of a two site polaron or an electron transfer
reaction. Networks of switches can be approximately described as quantum spin
systems by using an appropriate variational principle. In this way the concept
of frustration for magnetic systems can be taken over into gene networks. The
landscape of stable attractors depends on the degree and style of frustration,
much as for neural networks. We show the number of attractors, which may
represent cell types, is much smaller for appropriately designed, weakly
frustrated stochastic networks than for randomly connected networks.

32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc