Photon-Mediated Thermal Relaxation of Electrons in Nanostructures

Schmidt, Daniel R.; Schoelkopf, R. J.; Cleland, A. N.

doi:10.1103/physrevlett.93.045901

Cited by 121 publications

(151 citation statements)

References 22 publications

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“…Heat transfer due to photons in nanoscale circuits has been studied theoretically [157,158,159,160,161,162,163] as well as been experimentally observed [164,165]. Here, we present two different examples of photon harvesting.…”

Section: Photon Harvestingmentioning

confidence: 99%

Thermoelectric energy harvesting with quantum dots

2014

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Abstract. We review recent theoretical work on thermoelectric energy harvesting in multi-terminal quantum-dot setups. We first discuss several examples of nanoscale heat engines based on Coulomb-coupled conductors. In particular, we focus on quantum dots in the Coulomb-blockade regime, chaotic cavities and resonant tunneling through quantum dots and wells. We then turn towards quantum-dot heat engines that are driven by bosonic degrees of freedom such as phonons, magnons and microwave photons. These systems provide interesting connections to spin caloritronics and circuit quantum electrodynamics.

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Section: Photon Harvestingmentioning

confidence: 99%

Thermoelectric energy harvesting with quantum dots

2014

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“…Heat transport mediated by photons and pure phonon heat current is neglected as well 22,23 . In the former case, poor impedance matching with the electromagnetic environment makes indeed thermal transport occurring through the photonic channel vanishing at the investigated bath temperatures [23][24][25] .…”

Section: Nature Communications | Doimentioning

confidence: 99%

A quantum diffractor for thermal flux

2014

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Macroscopic phase coherence between weakly coupled superconductors leads to peculiar interference phenomena. Among these, magnetic flux-driven diffraction might be produced, in full analogy to light diffraction through a rectangular slit. This can be experimentally revealed by the electric current and, notably, also by the heat current transmitted through the circuit. The former was observed more than 50 years ago and represented the first experimental evidence of the phase-coherent nature of the Josephson effect, whereas the second one was still lacking. Here we demonstrate the existence of heat diffraction by measuring the modulation of the electronic temperature of a small metallic electrode nearbycontacted to a thermally biased short Josephson junction subjected to an in-plane magnetic field. The observed temperature dependence exhibits symmetry under magnetic flux reversal, and clear resemblance with a Fraunhofer-like modulation pattern. Our approach, joined to widespread methods for phase-biasing superconducting circuits, might represent an effective tool for controlling the thermal flux in nanoscale devices.

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“…The load from electromagnetic coupling to the environment can be ignored due to poor matching between the island and environment [24,25]. The heat load by electron-phonon interaction dominates in our experiment; the corresponding power is given by [26] …”

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confidence: 99%