Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-Adiabatic Effects of Nuclear Motion in Quantum Transport of
  Electrons: A Self-Consistent Keldysh-Langevin Study   The molecular junction geometry is modelled in terms of nuclear degrees of
freedom that are embedded in a stochastic quantum environment of
non-equilibrium electrons. Time-evolution of the molecular geometry is governed
via a mean force, a frictional force and a stochastic force, forces arising
from many electrons tunnelling across the junction for a given nuclear
vibration. Conversely, the current-driven nuclear dynamics feed back to the
electronic current, which can be captured according extended expressions for
the current that have explicit dependencies on classical nuclear velocities and
accelerations. Current-induced nuclear forces and the non-adiabatic electric
current are computed using non-equilibrium Green's functions via a time-scale
separation solution of Keldysh-Kadanoff-Baym equations in Wigner space.
Applying the theory to molecular junctions demonstrated that non-adiabatic
corrections play an important role when nuclear motion is considered
non-equilibrium and, in particular, showed that non-equilibrium and equilibrium
descriptions of nuclear motion produce significantly different current
characteristics. It is observed that non-equilibrium descriptions generally
produce heightened conductance profiles relative to the equilibrium
descriptions and provide evidence that the effective temperature is an
effective measure of the steady-state characteristics. Finally, we observe that
non-equilibrium descriptions of nuclear motion can give rise to the Landauer
blowtorch effect via the emergence of multi-minima potential energy surfaces in
conjunction with non-uniform temperature profiles. The Landauer blowtorch
effect and its impact on the current characteristics, waiting times and the
Fano factor are explored for an effective adiabatic potential that morphs
between a single, double and triple potential as a function of voltage.

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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: mtrl-th