Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics of currents in nonequilibrium diffusive systems: theory
  and simulation   Understanding the physics of nonequilibrium systems remains as one of the
major challenges of theoretical physics. This problem can be cracked in part by
investigating the macroscopic fluctuations of the currents characterizing
nonequilibrium behavior, their statistics and associated structures. This
fundamental line of research has been severely hampered by the overwhelming
complexity of this problem. However, during the last years two new general
methods have appeared to investigate fluctuating behavior that are changing
radically our understanding of nonequilibrium physics: a powerful macroscopic
fluctuation theory (MFT) and a set of advanced computational techniques to
measure rare events. In this work we study the statistics of current
fluctuations in nonequilibrium diffusive systems, using macroscopic fluctuation
theory as theoretical framework, and advanced Monte Carlo simulations of
several stochastic lattice gases as a laboratory to test the emerging picture.
Our quest will bring us from (1) the confirmation of an additivity conjecture
in one and two dimensions, which considerably simplifies the MFT complex
variational problem to compute the thermodynamics of currents, to (2) the
discovery of novel isometric fluctuation relations, which opens an unexplored
route toward a deeper understanding of nonequilibrium physics by bringing
symmetry principles to the realm of fluctuations, and to (3) the observation of
coherent structures in fluctuations, which appear via dynamic phase transitions
involving a spontaneous symmetry breaking event at the fluctuating level. The
clear-cut observation, measurement and characterization of these unexpected
phenomena, well described by MFT, strongly support this theoretical scheme as
the natural theory to understand the thermodynamics of currents in
nonequilibrium diffusive media, opening new avenues of research in
nonequilibrium physics.

10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
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The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
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The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: quant-ph