144 citations · 427 across the 6 of their papers we have counts for
11 papers
Stochastic pumping of heat: Approaching the Carnot efficiency
Dvira Segal
Random noise can generate a unidirectional heat current across asymmetric nano objects in the absence (or against) a temperature gradient. We present a minimal model for a molecula…
Sufficient conditions for thermal rectification in hybrid quantum structures
Lian-Ao Wu, Dvira Segal
We analytically identify sufficient conditions for manifesting thermal rectification in two-terminal hybrid structures within the quantum master equation formalism. We recognize tw…
Heat flux operator, current conservation and the formal Fourier's law
Lian-Ao Wu, Dvira Segal
By revisiting previous definitions of the heat current operator, we show that one can define a heat current operator that satisfies the continuity equation for a general Hamiltonia…
Thermal conduction in molecular chains: Non-Markovian effects
Dvira Segal
We study the effect of non-Markovian reservoirs on the heat conduction properties of short to intermediate size molecular chains. Using classical molecular dynamics simulations, we…
Single mode heat rectifier: Controlling energy flow between electronic conductors
Dvira Segal
We study heat transfer between conductors, mediated by the excitation of a monomodal harmonic oscillator. Using a simple model, we show that the onset of rectification in the syste…
Nonlinear thermal control in an N-terminal junction
Dvira Segal
We demonstrate control over heat flow in an N-terminal molecular junction. Using simple model Hamiltonians we show that the heat current through two terminals can be tuned, switche…