Unknown

Dataset Information

0

Nonequilibrium Energy Transfer at Nanoscale: A Unified Theory from Weak to Strong Coupling.


ABSTRACT: Unraveling the microscopic mechanism of quantum energy transfer across two-level systems provides crucial insights to the optimal design and potential applications of low-dimensional nanodevices. Here, we study the non-equilibrium spin-boson model as a minimal prototype and develop a fluctuation-decoupled quantum master equation approach that is valid ranging from the weak to the strong system-bath coupling regime. The exact expression of energy flux is analytically established, which dissects the energy transfer as multiple boson processes with even and odd parity. Our analysis provides a unified interpretation of several observations, including coherence-enhanced heat flux and negative differential thermal conductance. The results will have broad implications for the fine control of energy transfer in nano-structural devices.

SUBMITTER: Wang C 

PROVIDER: S-EPMC4495559 | biostudies-other | 2015

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC9771822 | biostudies-literature
| S-EPMC3576541 | biostudies-literature
| S-EPMC10587084 | biostudies-literature
| S-EPMC6450901 | biostudies-literature
| S-EPMC4780550 | biostudies-literature
| S-EPMC7786349 | biostudies-literature
| S-EPMC6659639 | biostudies-literature
| S-EPMC6115621 | biostudies-literature
| S-EPMC3831465 | biostudies-literature
| S-EPMC8361433 | biostudies-literature