We review studies of vibrational energy transfer in a molecular junction geometry, consisting of a molecule bridging two heat reservoirs, solids or large chemical compounds. This setup is of interest for applications in molecular electronics, thermoelectrics, and nanophononics, and for addressing basic questions in the theory of classical and quantum transport. Calculations show that system size, disorder, structure, dimensionality, internal anharmonicities, contact interaction, and quantum coherent effects, are factors that interplay to determine the predominant mechanism (ballistic/diffusive), effectiveness (poor/good) and functionality (linear/nonlinear) of thermal conduction at the nanoscale. We review recent experiments and relevant calculations of quantum heat transfer in molecular junctions. We recount the Landauer approach, appropriate for the study of elastic (harmonic) phononic transport, and outline techniques which incorporate molecular anharmonicities. Theoretical methods are described along with examples illustrating the challenge of reaching control over vibrational heat conduction in molecules.

Dvira Segal

Bijay Kumar Agarwalla

Annual Review of Physical Chemistry

自 1950 年出版的《物理化学年度评论》涵盖了物理化学领域的重大发展，包括生物物理化学、化学动力学、胶体、电化学、地球化学和宇宙化学、大气和气候化学、激光化学和超快过程，液态、磁共振、物理有机化学、聚合物和大分子等。

The Annual Review of Physical Chemistry, published since 1950, covers significant developments in the field of physical chemistry, including biophysical chemistry, chemical kinetics, colloid chemistry, electrochemistry, geochemistry and cosmochemistry, atmospheric and climate chemistry, laser chemistry and ultrafast processes, liquid state, magnetic resonance, physical organic chemistry, polymers, and macromolecules.

《Annual Review of Physical Chemistry》自1950年出版，涵盖了物理化学领域的重大进展，包括生物物理化学、化学动力学、胶体化学、电化学、地球化学和宇宙化学、大气与气候化学、激光化学与超快过程、液态物质、磁共振、物理有机化学、聚合物及大分子等多个方面。

Vibrational Heat Transport in Molecular Junctions

Calculations show that system size, disorder, structure, dimensionality, internal anharmonicities, contact interaction, and quantum coherent effects are factors that combine to determine the predominant mechanism (ballistic/diffusive), effectiveness, and functionality of thermal conduction at the nanoscale.

Category	Quartile
化学	1
化学, 物理化学	1

Vibrational Heat Transport in Molecular Junctions

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Category	Quartile
CHEMISTRY, PHYSICAL	1